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Google requires click timestamps, IP addresses, user agent strings, referrer URLs, GCLID parameters, and server-side access logs that correlate with the suspicious click IDs from your Google Ads report. Behavioral evidence — mouse movements, scroll depth, click timing, and form interactions — separates sophisticated bots from real users. Most claims fail because advertisers submit only server logs, which miss client-side bot signatures.
Google's Click Quality Form asks for six specific fields. Each field maps to a data point your tracking must capture at the moment of the click. Missing any field forces the reviewer to guess, and guesses favor the platform.
Server logs capture the first five automatically. The sixth comes from your Google Ads invalid activity report. You must join them on timestamp and IP or GCLID. A spreadsheet with one row per suspicious click is the minimum viable submission.
ClickFortify's template analysis confirms these six fields are what human reviewers at Google actually verify. Each field serves a distinct purpose:
| Field | Why It Matters | Common Gap |
|---|---|---|
| Timestamp (UTC) | Aligns your log entry with Google's billing record | Timezone mismatch between server and Google Ads account |
| IP Address | Flags data center, VPN, or known proxy ranges | Load balancer or CDN masks original IP |
| User Agent | Identifies headless browsers, outdated versions, or mismatched OS/browser combos | Bot spoofs common Chrome UA string |
| Referrer URL | Shows whether click came from Google search, partner site, or direct navigation | Referrer stripped by redirect chain or privacy settings |
| GCLID | Proves the click originated from a paid Google ad impression | Auto-tagging off, or GCLID dropped by landing page redirect |
| Google Click ID | Links your evidence to the exact line item in Google's invalid activity report | Report downloaded without click-level detail |
If your landing page redirects before your analytics script fires, you lose the GCLID. Fix the redirect order or capture the GCLID in a cookie before the redirect.
Server-side logs see the request. Client-side scripts see the behavior. Google's automated filters catch basic patterns — rapid clicks from one IP, known data center ranges, duplicate click signatures. They miss sophisticated invalid traffic (SIVT) that mimics human IP diversity and timing.
BotRefund's detection layer captures behavioral signals that server logs cannot: ghost clicks without human intent sequence, honeypot trap interactions, robotic linear mouse movements, absence of humanlike mouse tremor, superhuman input speed under 1 millisecond, grid-aligned movement patterns, absence of clicks or scrolling, and unnatural session durations. These signals turn a suspicious IP into a proven bot session.
Without browser-level auditing, you pay for visits that load pages but never read, scroll, or convert. Client-side evidence is what converts a denied claim into an approved refund.
Not all non-human traffic looks the same. The evidence you submit should match the fraud type:
Each type leaves a different fingerprint. Your evidence package should label the suspected fraud type and attach the matching behavioral proof.
A repeatable workflow beats ad-hoc scrambling every time Google's invalid activity report arrives.
Step 4 is where most advertisers stop. Server logs alone rarely meet Google's "compliance-grade" threshold for SIVT. The 83% approval rate BotRefund sees across filed claims comes from adding client-side behavioral evidence to every flagged click.
| Mistake | Result | Fix |
|---|---|---|
| Submitting only Google's auto-filtered credits | Leaves 50%+ of invalid traffic unclaimed | File manual claims for SIVT Google missed |
| Timezone mismatch between server logs and Google Ads | Reviewer cannot align click to billing record | Store all timestamps in UTC; convert Google report to UTC |
| CDN or load balancer strips original IP | IP shows your infrastructure, not visitor | Configure X-Forwarded-For header logging; verify at origin |
| GCLID lost in redirect chain | Cannot prove click came from paid ad | Capture GCLID before redirect; pass via cookie or query param |
| No client-side behavioral data | Cannot distinguish sophisticated bots from humans | Deploy lightweight browser script capturing mouse, scroll, timing |
| Submitting aggregate stats instead of click-level rows | Reviewer rejects — cannot verify individual clicks | One row per suspicious click ID; no summaries |
| Waiting too long to file | Google's lookback window expires; logs rotated | Weekly report pull; 60-day log retention minimum |
| Metric | Value | Source |
|---|---|---|
| Global digital ad fraud projection (2026) | Over $100 billion | S1 |
| Average invalid click rate across Google Ads campaigns | 11% to 14% | S1 |
| Google's automated filters catch rate | Less than 50% of invalid traffic | S1 |
| BotRefund detection confidence | 99% | S2, S7 |
| BotRefund refund claim approval rate | 83% | S2, S7 |
| Refund lookback window supported | Google Ads spend dating back to 2017 | S2 |
| Typical automated traffic share of paid clicks | 9% to 20% | S7 |
| Setup requirement | One script tag, ~1 minute, no ad-account access | S7 |
Google typically allows claims for the past 60 days. BotRefund recovers spend dating back to 2017 by leveraging platform dispute channels that accept older evidence when behavioral proof is strong.
No. The Click Quality Form is a standalone submission. BotRefund also operates without ad-account access — one script tag on your site is sufficient.
Denials usually cite insufficient evidence. Re-file with client-side behavioral data attached. Each click needs mouse movement, scroll, and timing logs that prove non-human interaction.
Typically 5–10 business days. Complex SIVT claims with behavioral evidence may take longer but have higher approval rates.
Yes. Server log joins can be scheduled. Client-side behavioral capture requires a persistent script. BotRefund automates both and generates the CSV package formatted for Google's form.
Invalid clicks include accidental taps, duplicate clicks, and fraud. Click fraud is intentional — competitors or bots draining budget. Google treats both as invalid activity, but fraud evidence requires behavioral proof of automation.
Yes. These campaign types still generate GCLIDs and appear in the invalid activity report. The evidence requirements are identical.
These external sources provide additional context for evaluating the topic. Their inclusion is not an endorsement.
To prove invalid traffic on Meta Ads, you need three core categories of evidence: ad platform performance logs, independent website session data, and clear proof that interactions were automated rather than the result of genuine user interest. Meta’s automated systems only catch a fraction of invalid clicks and impressions, so proactive claims rely on session-level behavioral data, not just server-level IP lists or suspicious lead patterns. This readiness checklist outlines exactly what to gather before you file a refund request to maximize your approval odds.
Invalid traffic on Meta includes clicks from bots, accidental mobile taps, click farm activity, and impressions served to fake accounts. It is distinct from low-quality leads: a real person who fills out your form but never responds is not invalid traffic, even if they are a poor fit for your business. Proving invalid traffic requires showing the interaction was not human-driven, not just that the lead did not convert.
Meta’s Advertising Policies define invalid traffic as any click, impression, or conversion that is not the result of genuine user interest. This covers four common categories:
Not every poor-performing lead counts as invalid traffic. A real user who clicks your ad, visits your landing page, and fills out your form but never responds to follow-up is a low-quality lead, not invalid traffic. Meta’s refund system only covers non-human or accidental interactions, so your evidence must prove automation, not just low conversion value.
Most denied invalid traffic claims share a common flaw: they rely on suspicious patterns rather than proof of automation. Meta’s review teams are trained to reject claims that only include server-level IP lists, vague statements about "bad leads," or unsubstantiated accusations of fraud.
Server-side data like IP addresses and user-agent strings can flag unusual traffic, but they cannot prove a user was non-human. Real users often access the internet via VPNs, mobile networks, or corporate proxies that share IPs with other users. Without behavioral data showing that the traffic completed actions no human could (like filling a 10-field form in 1.2 seconds with no corrections), reviewers cannot confirm the traffic was invalid.
Meta’s refund process is also less structured than Google’s invalid activity credit system, which means there is more room for interpretation during reviews. Claims with clear, session-by-session evidence of automated behavior have a far higher approval rate than claims that only highlight suspicious trends.
Use this checklist to gather all required documentation before submitting your claim. Organize all files by date, campaign name, and evidence type to make review as easy as possible for Meta’s team.
Follow this step-by-step process to structure your submission for the highest chance of approval:
Avoid these frequent errors that lead to automatic claim denials:
These external sources provide additional context for evaluating the topic. Their inclusion is not an endorsement.
Invalid traffic refers to any click or impression that does not come from a genuine human interest in your ad. This includes automated bots, click farms, accidental clicks, and fraudulent activity designed to exhaust your budget. Understanding what counts as invalid traffic is the first step toward building a strong case.
Google Ads uses automated systems to detect and filter invalid traffic in real-time. These systems analyze patterns, IP reputation, and behavioral signals to distinguish between human users and automated scripts. Google states that the majority of invalid clicks are filtered before they ever appear in your campaign metrics or billing reports.
However, no filter is perfect. Sophisticated botnets, residential proxy networks, and coordinated click farms can bypass these automated defenses. When invalid traffic slips through, it appears as legitimate engagement, potentially inflating your costs and distorting your performance data. Recognizing the limitations of Google’s built-in filters is essential before you begin gathering evidence.
The foundation of any invalid traffic claim is raw click data. Google Ads allows you to export click reports that include the timestamp, IP address, and user agent string for each click. To build a compelling case, you must look for specific patterns that suggest non-human activity.
Export these logs as CSV or Excel files. Retain the raw data without filtering, as the complete dataset provides the necessary context for identifying anomalies.
Beyond the click itself, user behavior on your website provides critical evidence. Google Analytics and server logs can reveal whether a visitor acted like a real human or an automated script.
Correlate these behavioral metrics with your click logs. If a cluster of clicks from a single IP results in zero engagement, this pattern is strong evidence of invalid traffic.
Google’s internal filters may overlook sophisticated attacks. Third-party bot detection solutions employ forensic techniques that go beyond basic IP and timing analysis.
Tools such as BotRefund monitor traffic using over 110 forensic signals, including browser fingerprinting, network latency checks, and behavioral telemetry. These systems can identify visits that appear human at the surface level but exhibit non-human patterns under closer inspection. The tools generate detailed reports that flag suspicious sessions, capture video proof of the browsing activity, and provide the structured data needed for formal disputes.
Once you have gathered click logs, behavioral data, and third-party reports, organize the information into a single, coherent dossier. Structure the evidence clearly for review by Google or a recovery service.
If you are working with an agency or a specialized recovery service, ensure they have access to this complete dataset before they begin negotiations with the platform.
With your evidence dossier prepared, you can initiate a formal dispute through the Google Ads Help Center. The process typically involves the following steps:
Google’s review team will examine the submitted materials. They may issue a credit on your next invoice if the evidence convincingly demonstrates that invalid traffic affected your billing. Note that refunds are not guaranteed and are typically reserved for cases where Google’s automated filters failed to catch the activity.
| Evidence Type | Purpose | Recommended Source |
|---|---|---|
| Click Logs | Identify IP clusters, timing spikes, and device patterns | Google Ads export |
| Behavioral Analytics | Prove lack of human engagement on site | Google Analytics, server logs |
| Forensic Reports | Detect sophisticated bot fingerprints and session video | Third-party tools (e.g., BotRefund) |
| Video Proof | Visual demonstration of non-human session behavior | Bot detection software output |
It is important to manage expectations when pursuing an invalid traffic claim. Google does not guarantee refunds for all cases. The company automatically filters the majority of invalid clicks before they reach your billing cycle, meaning many fraudulent interactions never result in a charge.
Additionally, Google typically limits dispute claims to activity within the past 60 days. Evidence older than this window may not be accepted for review. Refunds are generally issued as credits toward future advertising spend rather than cash payments, and the approval process can take several weeks as Google manually reviews each submission.
Advertisers often encounter pitfalls when attempting to prove invalid traffic. Being aware of these common errors can save time and improve the chances of a successful dispute.
Generally, no. Google filters invalid clicks before they are billed. If invalid traffic is detected after billing, Google typically issues a credit on your next invoice rather than a cash refund.
Google generally limits official disputes to the past 60 days. Some third-party recovery tools may assist with claims dating further back, but official platform disputes are time-sensitive.
You can identify many patterns using native platform data alone. However, sophisticated bot operations may bypass basic filters. Third-party detection tools provide additional forensic signals and video evidence that strengthen a dispute.
Combine raw click logs from Google Ads with behavioral analytics from your website. Add forensic reports from a dedicated bot detection tool to include video proof and detailed session analysis.
Yes. Any Google Ads account holder can submit a billing dispute through the Help Center. Agencies or recovery services often achieve higher approval rates for complex cases because their evidence structure meets stricter compliance standards.
Invalid traffic includes bot clicks, accidental clicks, clickjacking, competitor fraud, and traffic from click farms or scraper networks. Any engagement that does not represent a genuine human interest in your ad or content is classified as invalid.
Review timelines vary, but manual reviews by Google typically take several weeks. The team examines the submitted evidence and determines whether a credit or adjustment is warranted based on their internal policies.
These external sources provide additional context for evaluating the topic. Their inclusion is not an endorsement.
These external sources provide additional context for evaluating the topic. Their inclusion is not an endorsement.
Google and Meta do not issue refunds on suspicion alone. They require a structured evidence package that ties each disputed click to technical signals proving the visitor was automated, fraudulent, or otherwise invalid. The core items are click identifiers (GCLID for Google, fbclid for Meta), precise timestamps, IP addresses, and client‑side behavioral data — mouse paths, scroll behavior, form interaction timing, and session replays — that demonstrate the absence of human intent.
Ad platforms categorize invalid traffic into buckets they will credit if you prove the clicks belong there. Google lists three main categories: competitor click activity, publisher click fraud, and bot traffic or web scrapers. Meta focuses on lead‑quality signals — disconnected numbers, invalid email domains, burst submissions, and sessions with no scrolling or field corrections. In both cases the evidence must link a specific paid click to a specific technical anomaly.
Raw server logs are not enough. Platforms want client‑side proof captured in the browser: pointer tremors, scrollbar interactions, iframe context checks, and timing patterns that automation tools fail to replicate. BotRefund runs 106 independent browser checks — such as scrollbar width leaks and clean‑context iframe tests — and feeds each signal into an AI model that weighs the full pattern rather than relying on any single rule.
Google’s Click Quality team asks for GCLID logs, the formal investigation form, and a narrative that explains why the automated filters missed the traffic. The guide on BotRefund’s blog notes that Google’s real‑time filters often miss modern residential proxy networks and competitor click fraud, so advertisers must compile client‑side behavioral proof logs themselves.
Meta’s review looks for placement‑level spikes, conversion events with no meaningful page engagement, and CRM outcomes that contradict reported lead counts. The Meta invalid traffic guide recommends preserving attribution before changing the campaign, then comparing ad‑platform data, website sessions, and CRM results side by side.
Each signal is an independent fact. BotRefund’s documentation emphasizes that a single anomaly is not a verdict; privacy tools, corporate networks, and unusual devices can create outliers for real people. The platform cross‑checks every signal against browser, network, device, and behavior data before scoring a visit.
BotRefund adds a lightweight script to your site in about one minute. It captures the 106 behavioral checks on every visit, associates each session with its click ID and campaign metadata, and continuously scores visits with an AI model trained on corroborated patterns. When the model reaches high confidence, the platform builds a refund‑ready report that includes session replays, signal breakdowns, and a spend map — formatted for Google and Meta review teams. The homepage states that BotRefund proves bot clicks, negotiates with Google and Meta, and gets money back, with a reported refund approval rate across client claims and average ad spend recovered from billing disputes.
Platforms reserve the right to deny claims even with strong evidence. Google may reject clicks it classifies as accidental (double‑clicks, fat‑finger mobile taps). Meta may treat burst leads as low‑intent human traffic if no technical automation signals appear. Evidence older than the platform’s lookback window (Google allows disputes back to 2017 per BotRefund) may be excluded. Corporate VPNs, privacy browsers, and accessibility tools can create false positives that require manual review. No third‑party tool can guarantee a refund; the decision always rests with the ad platform.
| Metric | Detail | Source |
|---|---|---|
| Detection checks per visit | 106 independent browser, network, device, and behavior signals | S4, S6 |
| Model accuracy claim | Up to 99% when session evidence supports the prediction | S4, S6 |
| Setup time | About one minute to add script and start free bot audit | S2 |
| Refund lookback (Google) | Recover bot‑click refunds from Google Ads spend dating back to 2017 | S2 |
| Platforms supported | Google Ads and Meta (Facebook/Instagram) billing disputes | S2, S3, S7 |
| Report output | Refund‑ready PDF/CSV with session replays, signal breakdown, spend map | S3, S5 |
Google allows disputes on spend dating back to 2017, but you must have the click IDs and behavioral logs for those periods. Most advertisers only retain recent data, so ongoing collection is essential.
Yes. Meta weighs lead‑quality signals — contactability, CRM outcome, placement‑level patterns — more heavily than pure click‑level behavioral data. You still need fbclid, timestamps, and session replays, but the narrative must connect to downstream sales results.
Edge logs show network‑level anomalies but lack the browser behavioral signals (mouse tremor, scrollbar interaction, iframe context) that ad platforms explicitly request for refund reviews. They complement but do not replace client‑side evidence.
GA4 does not capture the micro‑behavioral signals (pointer paths, scrollbar width, clean‑context iframe) needed to prove automation. It also strips GCLID after the landing page unless you configure cross‑domain linking carefully. A dedicated evidence layer is still required.
Google’s Click Quality team typically responds in 2–4 weeks. Meta support timelines vary. Submitting a complete, platform‑formatted report upfront reduces back‑and‑forth delays.
No published minimum. However, the effort of compiling evidence pays off most when monthly ad spend is high enough that a 10–20% invalid‑click rate represents meaningful dollars. BotRefund’s pricing tiers start at under $10,000/mo ad spend.
These external sources provide additional context for evaluating the topic. Their inclusion is not an endorsement.
BotRefund needs three things to claim a refund from Google or Meta: click identifiers (GCLIDs for Google, FBCLIDs for Meta), forensic behavioral evidence tied to each click, and a narrative that maps that evidence to the platform's invalid traffic policy. The tool captures these automatically during the session, so you don't have to dig through server logs manually.
Here's the key distinction: a refund claim isn't just saying "my traffic looked suspicious." It's proving that specific clicks came from non-human sources. BotRefund builds that proof by cross-checking 110+ independent signals — browser fingerprints, network metadata, device characteristics, and behavioral patterns — and then formatting the results into a compliance-ready report for each platform's review team.
The process starts the moment a visitor lands on your page. BotRefund's script runs in the background, collecting data without slowing down the user experience. It captures the click ID from the URL, logs the exact timestamp, and begins recording behavioral telemetry. This real-time capture is critical because click IDs are only available in the URL for a short window. If you don't grab them immediately, they're gone forever.
BotRefund also tracks what happens after the click. It monitors whether the session triggers a conversion event, how long the user stays, and whether they interact with forms. This gives you a complete picture of each click's journey, from ad impression to landing page behavior. That full context is what makes a refund claim convincing.
Without a click ID, you have no way to prove that a specific click was invalid. Google and Meta review teams need to trace each disputed click back to their own records. A GCLID or FBCLID is the unique key that makes that trace possible.
BotRefund captures these IDs in real time during the session. This matters because you can't retroactively recover a click ID after the fact. If your pixel isn't set up to capture them, the evidence is gone. That's why BotRefund's script is designed to extract the click ID from the URL as soon as the page loads, before any other processing happens.
Click IDs also carry metadata. A GCLID contains information about the ad group, keyword, and campaign. An FBCLID contains similar data for Meta. This metadata helps reviewers understand the context of the click and verify that it matches your claim. Without it, your evidence is just a timestamp and an IP address, which is rarely enough to win a refund.
Furthermore, click IDs are the only way to tie a refund request to a specific ad impression. Platforms use them to check whether the click was actually served to a real user or to a known bot. If you can't provide the ID, the platform has no obligation to investigate.
BotRefund runs continuous DOM-level behavioral telemetry on your landing pages. It tracks physical cues that automated scripts leave behind:
Each signal is treated as evidence, not a verdict. BotRefund cross-checks it against independent browser, network, device, and behavior data before including it in a refund dossier. This corroboration is what gives the evidence credibility. A single anomaly could be a false positive, but when multiple independent signals point to the same conclusion, the case becomes strong.
BotRefund's AI model weighs the complete pattern. It doesn't rely on a single rule. Instead, it evaluates how all signals fit together to classify a visit as bot or human with 99% accuracy. This accuracy is what makes the evidence package convincing to platform reviewers.
Here's how BotRefund takes you from suspicious traffic to a successful refund claim:
This process is designed to be as hands-off as possible. BotRefund handles the technical evidence collection and formatting, so you can focus on running your campaigns.
Ad platform reviewers see thousands of refund requests. The ones that succeed share common traits:
BotRefund handles all four. It auto-formats packages to each platform's specification, so you don't have to translate technical evidence into a review-friendly narrative. This increases your chances of approval because the reviewer doesn't have to work to understand your claim.
Refund claims fail when evidence is weak or missing. Common failure points include:
BotRefund's approach avoids these by capturing evidence in real time and building corroborated cases from multiple independent signals. It also stays up to date with platform policies, so your claims are always aligned with current requirements.
| Requirement | Google Ads | Meta Ads |
|---|---|---|
| Click identifier | GCLID | FBCLID |
| Behavioral evidence | Mouse tremor, tab speed, scroll patterns | Keypress offsets, pointer jitter, form completion speed |
| Network evidence | IP, geo, VPN detection | Placement quality, proxy detection |
| Pixel protection | Prevent bot conversions from triggering tracking | Real-time pixel suppression |
| Report format | Forensic GCLID session proof | Compliance-ready refund reports |
| Detection signals | 110+ independent checks | 110+ independent checks |
| Accuracy | 99% | 99% |
| Refund approval rate | 83% | 83% |
You notice a sudden spike in clicks from a high-CPC keyword. BotRefund captures GCLIDs for each click, detects headless browser signatures, and submits forensic session proof to Google Ads reviewers. The refund is approved.
In this scenario, the emulator might be using a residential proxy to hide its IP. BotRefund's behavioral analysis catches the headless browser leak and the impossible tab speed. The evidence package includes multiple GCLIDs with matching behavioral anomalies, making the case strong.
Your Meta campaign shows high CTR but zero conversions. BotRefund identifies clicks from Audience Network placements with known bot activity, captures FBCLIDs, and builds a refund dossier showing the pattern.
Audience Network placements are a common source of bot traffic. BotRefund flags these placements and collects session-level telemetry that shows the clicks are automated. The report includes placement data and behavioral evidence, which Meta reviewers accept as proof of invalid traffic.
A publisher is generating fake signups to earn CPL payouts. BotRefund detects superhuman input speed and lack of focus states, blocks the conversion pixel, and provides evidence for both the refund claim and the affiliate dispute.
In this case, BotRefund not only helps you recover ad spend but also protects your affiliate program. The evidence package shows that the signups came from automated scripts, so you can terminate the publisher and avoid paying commissions on fake leads.
See how this page can help with your next step.
To successfully challenge a stolen commission, you must move beyond simple "suspicious" flags. Affiliate networks require concrete proof that an attribution path was manipulated. BotRefund generates granular, audit-ready reports that map the entire session journey, providing the specific data points networks need to process a rejection. This guide explains exactly what evidence you receive, how it is collected, and why it stands up to scrutiny.
| Evidence Type | What It Proves | Takeaway |
|---|---|---|
| Timestamped Click Logs | Sequence of events | Confirms if a cookie was dropped in the final milliseconds before conversion. |
| Referrer Chain Screenshots | Traffic origin | Identifies if the traffic source was hijacked or redirected. |
| Device Fingerprint Matches | User identity | Detects if multiple "conversions" come from the same automated device. |
| IP Reputation Scores | Network risk | Flags proxy or data-center IPs that support fraud claims. |
| Attribution Rule Violations | Policy breach | Highlights specific violations like unauthorized coupon extension injections. |
Each type of evidence works together to build a timeline. Networks want to see that you did not act on a hunch. The PDF report you receive arranges these data points in a logical order that matches the network's own investigation workflow.
BotRefund installs a lightweight JavaScript tag on your site. It tracks every session from the initial affiliate click through to conversion. The script captures raw data—nothing is filtered or modified.
Key data points include:
BotRefund runs 106 independent checks on each session. These include behavioral signals such as superhuman input speed, robotic linear movement, lack of mouse tremor, and unnatural session durations. Each check produces one piece of evidence. The prediction AI weighs the full pattern, not a single rule.
The tracking script does not require deep platform integration. It reads UTM parameters and click IDs from your traffic. For exact payout matching, you can upload a CSV or connect your affiliate platform later.
Data is stored securely. Only the flagged sessions are extracted into a dispute report. You never send raw logs to the network; you send a curated packet.
Filing a claim involves five clear steps. Each step requires attention to detail because networks look for procedural errors.
When the network asks for more details, you can open the PDF and point to specific timestamps or IP reputation scores. That level of specificity speeds up the review.
Click-level fraud tools catch bots in the traffic. That is useful for ad spend, but affiliate fraud often happens after the click. Real users or sophisticated scripts manipulate the attribution path in the final seconds before a sale.
Consider cookie stuffing. A hidden iframe or image on your site drops an affiliate cookie without the user seeing anything. The visitor never clicked that affiliate's link. They were on your site for a different reason. The cookie claims credit anyway. Standard click tools see a valid click because the cookie was set via an HTTP response. They do not check whether the user actually landed on that affiliate's page.
BotRefund's attribution path analysis catches this. It tracks the full referrer chain and every redirect. When a cookie appears without a corresponding click in the path, the session is flagged. The evidence includes the referrer URL, the timestamp of the cookie drop, and the fact that no page from that affiliate was visited.
Coupon overwrites are another example. Browser extensions inject affiliate cookies at the point of purchase. The user thinks they are using a coupon code; the extension replaces the original affiliate cookie. Standard tools only see the final cookie. BotRefund sees the change in cookie ownership. The report shows the original affiliate ID, the injection timestamp, and the IP address from which the injection occurred. That is hard evidence.
Last-click hijacking follows a similar pattern. An affiliate fires a redirect in the final milliseconds before a conversion. The user may have typed the URL directly, but the redirect gives credit elsewhere. BotRefund's click logs show the redirect sequence. The report includes the exact URL of the redirect and the timestamp difference between the last click and the conversion.
These patterns do not look like bot traffic. They pass traditional fraud filters. Only attribution path analysis reveals the manipulation.
The PDF report follows a specific structure. It starts with a one-page executive summary. This summary states the affiliate ID, the transaction ID, the commission amount, and the reason for rejection. It lists the violation type—cookie stuffing, last-click hijacking, coupon extension, or other.
The next section presents the timing evidence. Timestamped click logs are shown as a timeline. Each event is listed with a millisecond timestamp, the URL, and the action. Networks can see exactly when the suspicious cookie drop occurred relative to the conversion.
Then come the referrer chain screenshots. These are static images of the redirect path, captured from the session recording. They show every URL visited, including any that were hidden or triggered by script.
Device fingerprint matches are displayed in a table. If multiple conversions share the same fingerprint but different user accounts, the table highlights that. The fingerprint includes browser details, installed fonts, canvas rendering, and hardware specs.
IP reputation scores appear next. The score ranges from 0 to 100. A score below 30 indicates high risk. The report shows the ISP, the country, and whether the IP is from a data center or residential proxy.
The final section lists the specific attribution rule violations. BotRefund compares the session against the network's published policies. If the network prohibits hidden iframes or unauthorized redirects, the report points to that policy and shows the evidence.
The PDF is designed to be a complete package. You do not need to attach any other files. Networks typically accept it as the starting point for a dispute review.
Behavioral evidence is powerful, but it is not perfect. Legitimate users can trigger false positives. A person with a motor disability may move the mouse in an unusual pattern. A privacy tool may block session recording or alter the user-agent. A corporate network might use a shared IP that has a poor reputation.
BotRefund cross-checks signals to reduce errors. A single anomaly is never a verdict. For example, superhuman input speed alone does not flag a session. The AI also checks whether the user typed in a way that matches a human. If a session shows no mouse movement but does show natural scrolling and realistic pauses, it may be a keyboard-only user. BotRefund treats that as human.
Similarly, IP reputation is a risk factor, not proof. A data-center IP may be used by a legitimate remote worker. BotRefund confirms the fraud claim by looking for other patterns, like a session duration that is too short or too uniform. The report states the IP score but also shows the corroborating signals.
Networks have their own policies. Some may require additional data from their own tracking systems. Your BotRefund report is a starting point, not a guarantee. You may need to explain the evidence or answer follow-up questions. That is normal.
Another limitation is timing. Behavioral evidence is only useful if you capture it before the payout. BotRefund runs continuously, so you get flags in real time. If you discover a problem after paying, the evidence is still there, but the recovery process becomes a negotiation rather than a pre-payment hold.
Finally, not all networks are cooperative. Some may reject the evidence because they have their own fraud detection and want to avoid reversing commissions. In that case, you may need to escalate to a senior manager or use arbitration clauses in your contract. The PDF gives you a formal record to fall back on.
Most networks respond within 5 to 10 business days. Complex cases may take longer. If you pre-emptively flag a commission with a "Hold" tag, you can avoid a dispute altogether. The network simply delays payment until you investigate.
Ask for a specific reason. Sometimes the network wants a different format or additional data. You can request that they review the case with a senior fraud analyst. If they still reject, you can file a formal appeal using the PDF as your documentation. Keep records of all communication.
Yes. If several conversions share the same fingerprint or IP reputation, you can group them in one report. BotRefund allows you to select multiple transactions and generate a combined PDF. That simplifies the process and strengthens your case.
No. The dispute is between you and the network. The affiliate does not see the evidence unless the network shares it. In most cases, the network handles the communication directly. You should avoid contacting the affiliate yourself, as that can lead to retaliation.
No. Networks have their own systems. Your evidence complements theirs. When you present a BotRefund report, you demonstrate that you have independently verified the issue. That gives you more negotiating power. Some networks encourage advertisers to use third-party verification.
BotRefund keeps session data for your account. There is no automatic deletion. You can generate reports for any past period. However, networks may have time limits on disputes, usually 30 to 90 days. Check your contract.
If you need a sample dispute packet to see exactly what you will receive, download a free annotated PDF from BotRefund. It shows every section with explanations of what the network looks for.
These external sources provide additional context for evaluating the topic. Their inclusion is not an endorsement.
Google does not publish a simple checklist titled “evidence we accept.” Instead, it evaluates invalid activity claims using its own detection systems and any supporting data you submit. In practice, Google accepts refund claims when the evidence clearly shows that clicks came from bots, automated software, data centers, or malicious competitors — not from genuine user interest.
The most persuasive evidence combines four things: specific IP addresses, Google Click IDs (GCLIDs), timestamps, and behavioral proof that the click pattern is non-human. A single suspicious IP address rarely wins a claim. A complete evidence package does.
Google defines invalid activity as clicks or impressions that are not the result of genuine user interest. This includes both accidental clicks and intentionally fraudulent ones. Common examples include:
Google automatically detects some of this activity and issues credits on its own. But its automated filters catch less than 50% of invalid traffic, according to aggregated BotRefund audit data and third-party studies. The rest is classified as sophisticated invalid traffic (SIVT) and often requires manual evidence submission.
Google’s automated systems analyze traffic patterns across its ad network. When you file a manual invalid activity claim, you should provide the same categories of data Google already uses internally:
IP addresses are the starting point. Include the full IP address and the timestamp of each suspicious click. Known data center IP ranges, VPN exit nodes, and previously flagged IPs are strong signals. But remember: modern botnets use residential proxies, so an IP address alone is rarely conclusive.
A GCLID is a unique identifier Google attaches to each ad click. It is the single most useful piece of evidence for a refund claim because it ties the click to a specific campaign, ad, keyword, and time. Without GCLIDs, Google has to guess which clicks you are referencing. With them, you can point to exact sessions.
Precise timestamps help show patterns: dozens of clicks in seconds, clicks at 3 a.m. from a single IP, or clicks that repeat at regular intervals. Include your time zone so Google can match the times to its own logs.
The user agent identifies the browser and operating system. Odd combinations — like a Windows desktop browser claiming to be a mobile phone — can signal automation. More importantly, identical user agent strings across many clicks suggest scripted behavior.
Behavioral evidence is what separates a strong claim from a weak one. Google accepts data that shows clicks happening without the natural sequence of human intent. Examples include:
Google may not officially demand a specific behavioral format, but the more objective evidence you provide, the more likely your claim is approved.
Google also considers context. If you can show that clicks come from an IP range associated with a competitor, or occur right after your ad appears for a competitive keyword, that supports a manual review. This type of evidence is harder to prove, but it matters when the click pattern is not obviously bot-like.
Understanding what fails is just as useful as knowing what works. Google generally does not accept:
Google’s support team is trained to respond with generic replies when claims lack hard evidence. A thread on Google Ads Help titled “Click Fraud with Irrefutable Evidence – Support Response Generic” shows that even detailed evidence can meet a generic response unless it fits Google’s review process. Your job is to make the evidence so specific that it cannot be dismissed.
The process is straightforward, but success depends on preparation.
One common mistake: waiting too long. Google Ads logs and third-party session data are not available forever. When you see a suspicious pattern, capture the evidence immediately.
| Fact | Details |
|---|---|
| What Google defines as invalid activity | Clicks or impressions not caused by genuine user interest, including bots, accidental clicks, and competitor fraud |
| Automatic detection rate | Google’s automated filters catch less than 50% of invalid traffic; the rest may need manual evidence |
| Strongest evidence | GCLIDs, IP addresses, timestamps, user agent strings, and behavioral signals |
| Typical invalid click rate | 11% to 14% average across Google Ads campaigns, according to aggregated BotRefund audit data and third-party studies |
| Refund possibility | Google issues invalid activity credits, but requests are not automatically guaranteed; manual claims can recover budget |
| Recovery window | Evidence should be captured as soon as possible; BotRefund reports refunds for Google Ads spend dating back to 2017 |
Click fraud is not a small problem. Aggregated data suggests the average advertiser may lose 20% to 50% of their budget to non-productive activity. Invalid clicks inflate your costs, suppress legitimate conversions, and poison your conversion data.
The bigger risk is data poisoning. When bots trigger conversion pixels through fake form submissions, Google’s Smart Bidding algorithms learn from those fake conversions. Your campaigns optimize toward bot traffic, making the waste worse over time.
Understanding what evidence Google accepts is the difference between a generic “no” and an approved refund. Without the right evidence, your claim is just an opinion. With it, you give Google a reason to act.
Google can reject a claim for several reasons: missing evidence, unclear patterns, or the activity falling outside its refund policy. A rejection does not mean the clicks were valid. It often means the evidence was not convincing enough.
If your claim is rejected, review your evidence for gaps. Do you have GCLIDs for every suspicious click? Did you include user agent data? Is the timing pattern obvious? If you lack the tools to capture behavioral evidence, consider a solution that records GCLID-level behavioral proof automatically.
This is also where specialist services can help. BotRefund helps large advertisers and agencies prove invalid clicks, prepare the evidence, and negotiate directly with Google and Meta to recover wasted ad spend. Their reported 83% refund success rate for high-volume advertisers is based on client refund claims submitted to ad platforms.
Google does not publish a complete, formal list of accepted evidence. The guidance above is based on how Google’s invalid activity system works, documented behaviors, and practical experience from advertisers who have won claims. Your specific case may be handled differently depending on account history, campaign type, and where you advertise.
Small advertisers with low click volume may not have enough data to show a convincing pattern. Google also treats some traffic as “general invalid traffic” that is filtered automatically; you may never receive a credit for those clicks even if you can identify them. This advice is most useful for advertisers who can point to specific, repeated, non-human behavior — not for one-off suspicious clicks.
Finally, never file a claim with fabricated evidence. Google reviews claims against its own logs. If your evidence does not match, you risk losing credibility and future refunds.
Yes, Google has an invalid activity credit system. Some credits are issued automatically, while others require you to file a manual claim with supporting evidence.
There is no published guarantee. Google reviews claims on its own timeline, and manual reviews can take anywhere from days to weeks. Preparing complete evidence beforehand speeds things up.
Rarely. Screenshots can support a claim, but they are not proof. Google needs click-level data such as GCLIDs, IPs, and timestamps that it can verify against its own records.
No. A single IP address is weak evidence. Modern bots use residential proxies. Combine IPs with timestamps, user agents, GCLIDs, and behavioral patterns to make a convincing case.
A GCLID is a Google Click ID — a unique identifier attached to each ad click. It lets you match your evidence to Google’s click records, which is why it is the strongest reference for an invalid activity claim.
Google’s policy covers clicks intended to exhaust an advertiser’s budget, including competitor clicks. You must provide evidence that supports malicious intent, such as repeated clicks from a rival’s IP range or unusual patterns around competitive moments.
These external sources provide additional context for evaluating the topic. Their inclusion is not an endorsement.
Google requires clear documentation such as server logs, click timestamps, IP addresses, and any suspicious patterns that indicate automated or fraudulent activity to process a refund. While Google uses automated filters to catch many obvious bots, sophisticated fraud often bypasses these defenses. To successfully dispute a charge, you must provide forensic evidence that proves specific clicks were non-human or fraudulent.
The most critical piece of evidence for Google Ads is the Google Click ID (GCLID). This unique identifier is attached to every click on your ads. Without GCLIDs linked to specific behavioral proof, Google cannot verify that a session was a bot rather than a legitimate human user.
| Criteria | What it provides | Why it matters |
|---|---|---|
| GCLID | Unique click identifier | Links a specific website visit to a Google ad click. |
| IP Addresses | Source network data | Identifies high-frequency clicks from the same source or proxy. |
| Timestamps | Exact time of click | Shows impossible travel speeds or perfectly timed bursts of activity. |
| Behavioral Data | User session interaction patterns | Proves non-human actions like instant form filling without scrolling. |
Google employs massive automated systems to detect and filter invalid clicks in real-time. However, modern bot networks use residential proxies and browser automation to mimic real human users. These "sophisticated bots" are designed to look like legitimate traffic, bypassing standard range filters.
Because these bots simulate human-like behavior, advertisers must look for behavioral signals rather than just IP addresses. For example, a bot might click an ad and fill out a contact form in two seconds. A human cannot navigate a page, read the content, and type that fast. This discrepancy is the evidence Google needs to justify a manual refund.
Not all evidence carries equal weight. Google evaluates submissions on a spectrum from strong forensic proof to weak correlation. Understanding these tiers helps you package a claim that gets approved.
A winning submission connects each GCLID to a behavioral narrative Google can verify. Follow this structure:
Tools like BotRefund automate this packaging by capturing 110+ forensic signals per session, linking them to GCLIDs, and generating compliance-ready dispute reports.
Google's verification capability is bounded by what they observe on their side and what you prove on yours.
This asymmetry is why client-side behavioral evidence (captured via edge script) is decisive. Google sees the click; you see the session. Only together do they prove invalidity.
If you have identified suspicious activity, follow this structured process to ensure your evidence is presented correctly. Simply emailing support will rarely result in a refund.
It is important to understand that Google does not refund every "bad click." They only refund clicks that they can technically verify as invalid. If your traffic is low quality but clearly human (e.g., poorly targeted keywords), Google will likely deny the claim.
Furthermore, there is a time limit. Google limits claims to the past 60 days of activity. If you wait three months to notice a bot attack, you may lose the ability to recover that spend. This is why real-time monitoring is critical for capturing the data before it is overwritten.
Refunds are issued as account credits, not cash. Credits apply to future ad spend. Approval rates vary; industry data suggests well-documented claims with GCLID-behavioral linkage see significantly higher approval than raw log dumps.
| Approach | Pros | Cons | Best For |
|---|---|---|---|
| Manual Log Analysis | Free; full control | Time-intensive; misses behavioral signals; hard to scale | Small accounts, one-time audits |
| IP Blocking Tools | Low cost; easy setup | Misses residential proxy bots; no refund evidence; poisons pixels | Basic protection only |
| Behavioral Detection + Refund Service (e.g., BotRefund) | Captures 110+ forensic signals; auto-links GCLIDs; managed negotiation; 83% approval rate | Cost per recovered dollar; requires script install | Enterprise, agencies, high-spend accounts (>$50k/mo) |
Google automatically credits many obvious invalid clicks, but they do not catch every instance. You must manually request a refund if you notice activity beyond what is credited.
The Google Click ID (GCLID) is the most important because it allows Google to link your website-side evidence to their internal click-side data.
Google typically limits claims to the past 60 days of activity. It is best to act as soon as you notice a pattern.
No. Google only refunds for invalid or fraudulent clicks. Low-quality leads from real humans who are simply not ready to buy are not eligible for a refund.
Forensic signals are technical indicators captured during a session that reveal automation: headless browser flags, missing browser APIs, inconsistent viewport sizes, automated form fills, and zero scroll depth. BotRefund captures 110+ such signals per visit.
Pixel poisoning occurs when bots trigger conversion events (e.g., "Add to Cart", "Purchase", "Lead") on your site. This feeds false success signals to Google's Smart Bidding, causing the algorithm to optimize toward more bot traffic.
Google treats server logs as supporting evidence. They are not a primary source of truth unless paired with GCLIDs and behavioral proof that Google can cross-reference against their click records.
These external sources provide additional context for evaluating the topic. Their inclusion is not an endorsement.
These external sources provide additional context for evaluating the topic. Their inclusion is not an endorsement.
Google does not accept vague claims or general IP logs as proof of fraud. To get a refund for invalid traffic, you must submit a formal dispute containing two specific pieces of evidence linked together:
If you cannot link a specific GCLID to a specific instance of non-human behavior, Google will reject the claim. The platform relies on this granular data to distinguish between accidental clicks and malicious fraud.
Many advertisers try to submit server-side logs or IP address lists when filing a complaint. While these tools can identify suspicious activity, they do not satisfy Google's billing requirements. Here is why generic logs fail:
To build a successful case, you need to capture data at the moment the click occurs. The following elements form the backbone of a valid refund submission.
The GCLID is the most critical piece of data. It is appended to your landing page URL automatically when a user clicks a Google Ad. Your website must be configured to capture this parameter and store it against the visitor's session. Without the GCLID, there is no way to match the traffic to your Google Ads account billing statement.
Video proof is the gold standard for demonstrating invalid traffic. Unlike static logs, a video replay shows the entire user journey. For a refund claim, you need to highlight:
Bots often leave digital footprints in the browser environment. Evidence should include data points such as:
Human traffic follows natural patterns. Bot traffic often arrives in bursts or at impossible speeds. Evidence should show:
You cannot retroactively gather deep behavioral evidence for clicks that happened months ago. You must implement detection tools immediately to start building your case.
Install a lightweight script on your website that runs in the user's browser. Server-side tools are too late because the damage (pixel poisoning and budget spend) happens before the server even processes the request. Client-side scripts can detect bots the moment they load the page.
Ensure your analytics setup captures the gclid parameter from the URL. Store this value in a database alongside the session ID. This creates the bridge between the technical event and your financial record.
Your detection tool should generate a report for each flagged session. This report must include:
Navigate to the Google Ads Help Center and select "Invalid Clicks." Upload your evidence dossier. Be precise. Do not send hundreds of individual emails. Group your evidence by date range and campaign to make it easy for Google’s review team to process.
Even with good data, many claims fail due to procedural errors. Avoid these pitfalls:
It is important to understand what the program does not cover. Google’s invalid traffic policy is designed to protect the integrity of the auction, not to guarantee full reimbursement for all wasted spend.
Getting a refund is difficult. Google’s internal algorithms catch a significant amount of fraud automatically. Manual reviews are reserved for cases where the algorithm missed something. Because of this, the approval rate for manual disputes is low. Most successful recoveries come from using specialized third-party services that aggregate large volumes of evidence and negotiate directly with Google’s enterprise support teams.
| Evidence Type | Required Format | Purpose |
|---|---|---|
| GCLID | URL Parameter / Database Log | Links traffic to specific billing charges |
| Session Video | MP4 or Embedded Player Link | Proves non-human behavior visually |
| Browser Fingerprint | JSON Data Export | Confirms device authenticity |
| Timestamp | ISO 8601 Format | Matches claim to billing cycle |
Reviews can take anywhere from two weeks to several months. Google prioritizes cases with clear, undeniable evidence. Complex cases involving multiple campaigns may take longer.
Generally, no. Google’s policy restricts manual refund requests to the previous 60 days. However, some enterprise accounts may have different agreements. Check your contract terms.
No. You can file the claim yourself through the Google Ads interface. However, given the complexity of the evidence required, many businesses use specialized fraud recovery services to handle the negotiation.
You can appeal, but you must provide new evidence. Resubmitting the same data will result in another rejection. Focus on strengthening the behavioral proof for any rejected sessions.
Yes. BotRefund automates the collection of GCLIDs and behavioral evidence. It prepares compliance-ready dispute logs that meet Google’s requirements, increasing the likelihood of approval.
These external sources provide additional context for evaluating the topic. Their inclusion is not an endorsement.
Google requires precise, forensic evidence before approving a click fraud refund. Your claim needs click timestamps, IP addresses, click IDs (GCLID), user agent strings, proof of non-human behavior such as zero dwell time or no scrolling, and a pattern analysis that shows coordinated activity across sessions. Collect all of this within 60 days of the invalid clicks for the best chance at a credit.
Google's automated filters do block obvious bot traffic, but they miss modern fraud such as residential proxy networks and competitor click farms. That gap is why Google maintains a manual dispute process through its Click Quality team. Your refund is approved or denied based on what you attach to the formal investigation form.
Google officially categorizes invalid clicks into traffic segments it will credit back when you provide sufficient proof:
Accidental clicks, like a fat-finger tap on a mobile ad, are treated differently and rarely qualify for a refund. Your evidence must show non-human intent, not user error.
Google's Click Quality team reviews your case against six core evidence layers. Missing any of them weakens your claim significantly.
Every disputed click needs a precise timestamp with its timezone. Timestamps let Google correlate your logs with its own server records. Without them, there is nothing to verify against.
Record the IP address behind every suspicious click. Patterns of many clicks from one IP, or from IPs in the same subnet, are strong signals of automation. Residential proxies complicate this because fraudsters route through hijacked smart devices, so an IP alone is rarely enough. Pair it with other evidence layers.
Google's own click identifier — the GCLID — ties your evidence directly to Google's billing records. Each ad click is assigned a GCLID. Your logs must include the GCLID for every disputed click so Google can locate it on its side of the system.
User agent strings reveal the browser, operating system, and device of each visitor. A headless Chrome instance or a scraper script leaves a different signature than a real browser. Uniform or suspicious user agents across many clicks are a red flag for automation.
This layer carries the most weight because Google's filters struggle with advanced bots that mimic human movement. Your client-side behavioral logs can tip the balance. Signals include:
Coordinated activity is the smoking gun. Look for bursts of clicks from the same IP range, near-identical session durations, clicks on the same ad at exact intervals, and zero conversions across the suspect sessions. Export the pattern analysis as a clear summary and include it in your claim.
Server-side logs will not show behavioral signals like mouse tremor or scrolling depth. You need a client-side script running on your landing pages to record pointer movement, click intervals, scroll behavior, and session timing. This is the data Google's support agents expect when they ask for forensic evidence.
The client-side approach is also the only practical way to catch modern fraud. Residential proxies defeat IP blocking, and AI-generated bot telemetry defeats simple pattern rules. Behavioral data is harder to fake because it captures what actually happened inside the browser session.
Install the detection script across all pages that receive ad traffic, not just your homepage. A bot may land on a deep product page or a blog post before clicking your ad, so coverage matters. Once the script is live, it begins collecting the signals you will need later.
Individual suspicious clicks can be dismissed as noise. A pattern analysis converts them into a case. Group the evidence by:
Export the analysis as a readable report. Google's review team should not have to dig through raw logs to see the pattern — summarize it clearly in your submission packet. A simple table or chart that shows the coordinated nature of the invalid activity will do more than a wall of raw data.
| Fact | Detail |
|---|---|
| Budget loss to bot clicks | Up to 20% of your Google and Meta ad budget |
| Refund approval rate | 83% across submitted client refund claims |
| Setup time for detection | About 1 minute to add a tracking script to your site |
| Claim window | Refunds available for Google Ads spend dating back to 2017 |
| Core behavioral signals | Ghost clicks, honeypot traps, robotic mouse movement, superhuman speed, grid-aligned paths, unnatural session durations |
Most rejected claims share the same weaknesses:
If your claim is rejected, you can often resubmit with stronger evidence. Fix the gaps above before you appeal. Also, if you never had client-side tracking installed during the click period, your approval odds drop sharply — Google's reviewers expect forensic detail, not guesses.
Google does not publish a fixed review time. Larger accounts with a dedicated rep tend to get faster responses. Track your case in the Google Ads help center and follow up if it stalls.
Google focuses on recent invalid activity, but recovery claims have been made for Google Ads spend dating back to 2017 in documented cases. Do not assume old spend is lost — check with your rep and provide whatever evidence you have.
No. You can manually collect server logs and behavioral screenshots. The challenge is that Google expects forensic-level proof, and manual collection usually misses behavioral signals like mouse tremor and session patterns. A client-side detection tool automates the capture and export for you.
It is Google's official form for disputing invalid clicks. You use it to submit your evidence packet to the Click Quality team, which decides whether to credit your account.
Residential proxy traffic is hard for Google's filters to catch, which is why it slips through in the first place. With strong client-side behavioral evidence, these claims can succeed. The behavioral layer is what separates winning claims from rejected ones.
A legitimate refund request does not penalize your account. Google treats invalid click disputes as a standard billing process. Filing repeated claims without evidence can get the form restricted, so only submit when you have real proof.
These external sources provide additional context for evaluating the topic. Their inclusion is not an endorsement.
Google approves invalid click refunds only when advertisers submit forensic evidence that proves clicks were non-human and generated zero commercial value. The platform does not accept screenshots of high bounce rates or generic analytics exports. You need Google Click IDs (GCLIDs) tied to behavioral proof — such as missing browser signals, automated navigation patterns, and conversion events that never occurred in your CRM — formatted into a compliance-ready report.
Most claims fail because advertisers submit incomplete data: a list of suspicious IPs without session-level behavioral evidence, or conversion discrepancies without tied GCLIDs. Google's review team compares your submission against their internal invalid traffic filters. If your evidence does not add new signal beyond what their automated systems already caught, the claim is denied. The 60-day lookback window means you must collect and structure this evidence continuously, not retroactively.
Google groups required evidence into three buckets: identity signals, behavioral signals, and outcome signals. Each GCLID you dispute must have at least one strong signal from each bucket.
Google reviewers process hundreds of claims weekly. A compliant dossier follows a specific structure so reviewers can verify each GCLID in under 30 seconds.
Each row = one disputed GCLID. Required columns:
| Column | Description | Example |
|---|---|---|
| GCLID | Google Click ID from landing URL | Cj0KCQjw...EAIaAq |
| Timestamp (UTC) | Exact click time | 2026-08-15 03:14:22 |
| IP Address | Visitor IP at session start | 45.77.12.189 |
| ASN / ISP | Autonomous System Number and provider | AS16276 / OVH SAS (datacenter) |
| Browser Signals | JSON of detected automation markers | {"webdriver":true,"canvas":"blocked"} |
| Session Duration | Time on site (seconds) | 3 |
| Pages Viewed | Count of unique URLs | 1 |
| Conversion Event | Did GA/Ads conversion fire? | No |
| CRM Match | Lead/purchase in first-party data? | No |
| Fraud Classification | Bot type per your taxonomy | Headless Chrome / Datacenter |
| Gap | Why It Fails | Fix |
|---|---|---|
| IP list only, no GCLIDs | Google cannot map IPs to billed clicks | Capture GCLID at landing via URL parameter or cookie |
| Analytics screenshots (GA4, Mixpanel) | Not tied to Google's billing records; no GCLID linkage | Export raw event logs with GCLID as primary key |
| High bounce rate / low time-on-site | Real users bounce too; not proof of automation | Add browser automation signals (webdriver, missing APIs) |
| Competitor name without technical correlation | Speculation, not evidence | Show same ASN/proxy fleet hitting competitor per Auction Insights |
| Claims older than 60 days | Hard policy limit; no exceptions | Automate daily evidence collection and monthly claim filing |
| No conversion pixel protection | Bot conversions poison Smart Bidding; Google sees you "accepted" the traffic | Suppress pixel fire for sessions flagged as invalid in real time |
Highest approval rate. GCLIDs are reliable. Focus on: missing browser signals, zero-second sessions, datacenter IPs, and CRM mismatches. Competitor click fraud on high-CPC keywords ($30+) gets scrutiny but requires the same technical proof.
Harder to dispute. GCLIDs are aggregated across Search, Display, YouTube, Discover, Gmail. You must segment by channel using gclid + gbraid/wbraid parameters. Google's automated invalid click filter is more aggressive on PMax; your evidence must show clicks their filter missed.
Lowest approval rate. Many clicks are view-through or accidental. You need strong behavioral proof: zero engagement signals, known botnet ASNs, and evidence that placement publishers are running traffic arbitrage.
| Fact | Detail |
|---|---|
| Claim window | 60 days from click date (hard limit) |
| Required identifier | GCLID (Google Click ID) for every disputed click |
| Evidence standard | Behavioral proof of automation + zero commercial outcome |
| Approval rate (industry) | ~30–40% for self-filed claims; 83% for BotRefund-filed claims per client data |
| Review timeline | 15 business days typical |
| Refund form | Google Ads → Tools → Billing → Invalid Clicks → Request Investigation |
| Payment | Credited to Google Ads account balance, not cash payout |
?gclid=Cj0KCQjw...EAIaAq) that ties a click to Google's billing record.Yes, but you must build your own client-side forensic capture (GCLID + fingerprint + behavioral signals), store it with chain-of-custody integrity, and format it into Google's expected structure. Most teams underestimate the engineering effort: reliable automation detection requires 50+ browser signals and continuous maintenance against evasion techniques.
You can request one re-review with additional evidence. After that, the decision is final. No external arbitration. This is why evidence completeness on first submission matters — denials are rarely overturned.
Ad credit applied to your Google Ads account balance. You cannot withdraw it as cash. It offsets future spend.
60 days from the click date. This is a hard policy limit. Claims for clicks older than 60 days are automatically rejected.
Self-filed claims with basic evidence: 30–40%. Claims with full forensic dossiers (GCLID-level behavioral evidence + CRM mismatch + correlation analysis): 60–70%. BotRefund's managed service reports 83% approval rate per their client data.
IP exclusions help prevent future waste but don't recover past spend. Also, modern botnets rotate residential IPs daily — IP blocking catches < 10% of sophisticated fraud. Evidence collection for refunds and real-time pixel suppression are more effective.
Free to file. If you use a managed service like BotRefund, the model is contingency-based: pay a percentage of recovered spend only when the refund arrives. No upfront fees.
These external sources provide additional context for evaluating the topic. Their inclusion is not an endorsement.
Meta does not automatically refund ad spend for poor campaign performance or low ROI. To qualify for a refund due to invalid traffic, advertisers must submit verifiable evidence proving that clicks or impressions were generated by non-human sources in violation of Meta's advertising policies. This evidence must be specific, forensic, and directly tied to the ad spend in question.
Meta evaluates refund claims on a case-by-case basis and only accepts evidence that demonstrates clear violations of its traffic quality standards. The following types of documentation are typically considered when assessing whether invalid traffic occurred:
According to industry audits, automated traffic consistently accounts for between 9% and 20% of paid clicks across Meta and Google platforms. This baseline helps contextualize the scale of potential waste when building a claim.
It is critical to understand what does not qualify as valid evidence, as submitting irrelevant documentation will result in claim rejection. Meta explicitly states it does not refund based on:
For example, noticing that your campaign received many clicks but few sales is insufficient on its own. You must prove those clicks were invalid — not just ineffective.
To increase the likelihood of approval, organize your evidence clearly and logically. Meta's review team looks for a coherent narrative that connects raw data to policy violations. A strong submission includes:
Keep in mind that Meta has a 60-day window for submitting refund claims from the date the invalid traffic occurred. Acting quickly preserves data integrity and improves your chances of a successful outcome.
Many advertisers use specialized fraud detection platforms to generate the evidence Meta requires. These tools automate the collection of behavioral signals — such as mouse movement patterns, click timing, device characteristics, and navigation behavior — to distinguish bots from real users.
For a report to be useful in a Meta refund claim, it should include:
Reports that lack granularity or rely only on IP blacklists are less likely to be accepted, as they do not meet Meta's standard for forensic, behavior-based evidence. Leading detection platforms analyze over 110 browser and network signals to achieve 99% confidence in bot identification, capturing forensic telemetry such as click behavior, ghost clicks, trap interactions, pointer behavior, motion behavior, speed behavior, path behavior, engagement behavior, and session behavior.
Even with good intentions, advertisers often undermine their claims by making avoidable errors. Based on Meta's published guidance and third-party analyses, the most frequent reasons for denial include:
Avoiding these pitfalls requires preparation and, often, partnership with a vendor experienced in Meta's evidentiary standards.
Once submitted, Meta reviews the claim internally, which may take several weeks. The evaluation focuses on whether the evidence:
If approved, Meta typically issues refunds as ad credits applied to your ad account, not cash payments. For monthly invoiced accounts, credit memos may be issued instead. Meta emphasizes that refunds are granted at its sole discretion and are not guaranteed, even with strong evidence.
If denied, you will receive a reason for the decision. In some cases, you may be able to resubmit with additional clarification or supplemental evidence — but only if the original submission missed key details, not if the evidence itself was insufficient. Vendors specializing in platform negotiation report an 83% approval rate across filed claims when evidence meets forensic standards.
Given the discretionary nature of Meta's refund process and the effort required to compile evidence, many advertisers find that prevention yields better long-term results than chasing refunds after the fact. Consider filing a claim only when:
Otherwise, investing in real-time bot detection, pixel protection, and traffic filtering may protect more revenue over time than occasional refund recovery.
Meta's refund eligibility hinges on whether traffic violates specific advertising policies, not merely on whether traffic appears suspicious. The platform's Traffic Quality Policy defines invalid traffic as clicks or impressions generated by automated means, deceptive practices, or coordinated inauthentic behavior. This includes bot networks, click farms, and scripts designed to inflate engagement metrics.
Understanding these policy boundaries shapes what evidence you gather. For instance, traffic from Meta Audience Network placements often shows high click-through rates and near-instant bounce rates because publishers on that network may use automated bots to click ads for artificial revenue. Evidence that isolates Audience Network traffic and demonstrates non-human behavioral patterns — such as absence of mouse tremor, superhuman input speed under 1ms, or grid-aligned movement — directly addresses policy violations.
Similarly, residential proxy botnets route clicks through household devices to mask automation. Evidence showing consistent behavioral anomalies across diverse residential IPs strengthens a claim by ruling out legitimate user variance. Meta's policy also covers competitor click fraud, where rivals deploy scripts to drain budgets. Server logs showing repeated clicks from IPs associated with competitor domains, paired with behavioral proof of automation, align with policy definitions.
Advertisers should map each piece of evidence to a specific policy clause. This mapping helps Meta reviewers see the violation clearly and reduces back-and-forth requests for clarification.
Refund claims are reactive. A proactive traffic quality program reduces the need for claims and protects campaign performance continuously. Start by implementing client-side detection that captures behavioral signals in real time — before conversion pixels fire. This prevents pixel poisoning, where bot interactions train Meta's algorithms to optimize toward non-human audiences.
Key practices include:
Real-time filtering is essential. Delayed analysis means your pixel is already poisoned and budget already spent. Tools that integrate with Meta's Conversion API can send clean event data while blocking invalid events, preserving algorithm integrity.
Document your traffic quality workflow. Maintain logs of detection rules, suppression actions, and audit findings. This documentation not only supports future refund claims but also demonstrates due diligence if Meta questions your traffic quality.
Finally, align your traffic quality budget with your ad spend. Industry data suggests up to 20% of paid clicks may be automated. Allocating a fraction of that potential waste to detection and prevention typically yields positive ROI within the first month.
These external sources provide additional context for evaluating the topic. Their inclusion is not an endorsement.
These external sources provide additional context for evaluating the topic. Their inclusion is not an endorsement.
To get Meta to approve an invalid traffic (IVT) refund, you need to submit a formal billing dispute supported by forensic proof. Meta does not automatically refund invalid clicks like Google Ads does. Instead, they review your claim case-by-case.
You must provide the following specific evidence:
Without this package, Meta will likely deny the request as "poor performance" rather than technical fraud.
| Criteria | Meta (Facebook/Instagram) | Google Ads | TikTok Ads |
|---|---|---|---|
| Refund Method | Manual Dispute / Ad Credits | Automated Filtering / Credits | Check with the vendor |
| Primary Evidence | Forensic session logs (IP, FBCLID) | GCLID-level click data | Third-party verification reports |
| Claim Timeline | Recommended within 30 days | Past 60 days | Check with the vendor |
| Approval Timeline | 10-15 business days | Often automated/instant | Check with the vendor |
Most advertisers assume Meta has a simple "refund form" because Google Ads offers one. This is a common mistake that leads to denied claims.
Google bills on a strict per-click basis. If a click is invalid, it is a discrete billable event. Meta bills based on delivery and results. The platform optimizes for conversions, not just clicks. Therefore, proving a single click was invalid is often less important than proving the entire campaign signal was corrupted.
When you file a dispute, Meta looks at whether the invalid traffic skewed your campaign’s learning phase. If bots triggered your conversion pixel, the algorithm learned wrong data. Your evidence must show this systemic corruption, not just isolated bad clicks.
You cannot rely on Meta’s built-in Ads Manager reports. These summaries are too high-level for a billing dispute. You need granular, session-level data.
Start by exporting your raw impression and click logs. Ensure these files include:
If you use a tool like BotRefund, it can automate this. It flags non-human sessions using 110+ forensic signals and prepares these into dispute-ready format.
Meta trusts independent auditors more than self-reported data. Attaching a report from recognized vendor adds significant weight to your claim.
Popular vendors include:
These tools scan your traffic in real-time. They generate reports showing the percentage of invalid traffic. For a refund claim, you need line items that match your disputed date.
Data alone is not enough. You must write a concise narrative. This document connects raw logs to Meta’s policies.
Your narrative should answer three questions:
Keep the tone professional and factual. Avoid emotional language. Use terms like "automated script," "click farm," and "pixel poisoning.
Meta does not have a public "Invalid Traffic Refund Form." You must access the process through your account manager or the Help Center.
Follow these steps:
If you do not have an account manager, use the Help Center to open a ticket. Be persistent. First responses are often automated. Request a human reviewer if your initial submission is rejected.
To win a refund, you must speak Meta's language. Meta categorizes invalid traffic (IVT) into several distinct buckets. Understanding these allows you to categorize your evidence correctly.
First is Automated Activity. This includes scripts, crawlers, and bots that interact with your ads without human intent. These often operate at speeds or in patterns that are impossible for a human to achieve.
Second is Click Farms. These are groups of people or sophisticated bots paid to click on ads to inflate metrics. Evidence of click farms usually involves high-frequency clicks from the same geographic region within a very short window.
Third is Accidental Clicks. This occurs when a user clicks an ad by mistake. While Meta often filters these out automatically, if the volume is de novo abnormally high due to poor placement, it may be grounds for a dispute.
Finally, Malicious Activity. This involves competitors or entities intentionally clicking your ads to drain your budget. Proving this requires showing that the traffic is linked to a competitor's infrastructure or shows a pattern of intent to sabotage your campaign.
Real-world scenarios show how evidence is applied. Here are two common cases where advertisers successfully recovered funds.
Case A: The E-commerce Pixel Poisoning. A fashion brand noticed a 400% spike in "Add to Cart" events without a corresponding increase in sales. Using forensic logs, they identified that 80% of these events originated from headless browsers using a known data center IP. They submitted these logs alongside FBCLIDs, proving that bots had triggered the Meta Pixel. Meta issued a credit for the poisoned spend.
Case B: The Audience Network Click Farm. A lead gen company noticed high bounce rates from specific mobile apps within the Meta Audience Network. They used a third-party report from IAS showing that the traffic was coming from a known click farm in a specific region. By proving the traffic was non-human and should have been filtered out, the advertiser successfully secured a refund for that specific placement deplet.
Many claims fail because of avoidable errors. Check your submission against this list before sending.
It is crucial to understand what Meta will not refund. Even with perfect evidence, some claims are denied.
Meta reserves the right to issue refunds as ad credits, not cash. This means you get free spend on future campaigns, not money back in your bank account.
Recovering funds is difficult. Prevention is easier. Use these steps to stop bots from corrupting your campaigns.
| Fact | Detail |
|---|---|
| Refund Type | Ad credits or credit memos (rarely cash) |
| Primary Evidence | Raw logs (CSV/JSON), IP/User-Agent data, FBCLIDs |
| Verification Vendor | IAS, DoubleVerify, Moat (recommended) |
| Submission Channel | Meta Business Help Center or Account Manager |
| Approval Rate | Varies; higher with third-party verification |
| Timeframe | Submit within 30 days of charge for best results |
No. Unlike Google Ads, Meta does not have a public-facing "Invalid Traffic Refund Form." You must contact support via the Help Center or account manager.
Usually, no. Meta typically issues refunds as ad credits to be used on future campaigns. In rare cases involving monthly invoicing, you might receive a credit memo, but cash refunds are uncommon.
Reviews typically take 10–15 business days. However, complex cases requiring manual investigation may take longer. You will receive an email notification once a decision is made.
Do not give up. Request a detailed written reason for the denial. Often the first denial is due to insufficient evidence. Supplement your package with stronger third-party verification reports and resubmit.
Not strictly required, but highly recommended. Self-reported data is often viewed with skepticism. Independent reports from IAS or DoubleVerify significantly increase your chances.
Yes, but there is a limit. Meta generally expects disputes to be filed within 30 days of the charge. Older charges are much harder to recover because the data may no longer be accessible or verifiable.
You must rely on extremely high-quality raw logs. Ensure your CSV files are perfectly formatted and include clear patterns like repetitive IP clusters. Without a third-party report, the burden of proof is much higher.
If your claim is denied, ask for a technical review by a human agent. Often, automated systems miss nuanced bot behavior. If the human also denies, consider using a third-party auditor to provide the missing evidence before escalatingating.
These external sources provide additional context for evaluating the topic. Their inclusion is not an endorsement.
Google's refund review teams expect click-level evidence in a machine-readable format. The primary requirement is a structured export — CSV or JSON — that ties each disputed click to a Google Click ID (GCLID) and the behavioral signals that prove the interaction was non-human. Screenshots of dashboards, PDF summaries, or narrative explanations are treated as supplementary; they cannot substitute for the raw click record.
Every row should represent a single paid click you are contesting. The minimum viable column set includes:
Additional columns such as referrer, user agent, session duration, page depth, and behavioral anomaly flags (e.g., missing mouse tremor, superhuman input speed) strengthen the case but are not strictly required for submission.
Google's invalid traffic team processes thousands of claims. Automated parsers ingest CSV and JSON files, match GCLIDs against internal logs, and flag patterns across accounts. A screenshot forces a human to transcribe data, which introduces delay and error. PDFs are marginally better if they contain selectable text tables, but they still lack the programmatic structure reviewers rely on.
If you use Google Analytics 4, link the property to Google Ads, then export the Google Ads clicks report with the same dimensions. GA4 adds session-level behavioral data (engagement time, events, conversions) that Google reviewers find useful.
A raw click export shows that a click happened. To prove it was invalid, you need forensic signals captured on your landing page at the moment of the visit. BotRefund's edge script records 110+ browser and network signals — pointer behavior, motion behavior, speed behavior, session behavior, engagement behavior, and trap behavior — and attaches them to the GCLID in real time. The resulting evidence dossier is a CSV/JSON file where every contested GCLID carries a bot_probability_score and the specific signals that triggered it (e.g., "ghost_click_detection: true", "pointer_linear_path: true", "input_speed_lt_1ms: true").
This format mirrors what Google's own Traffic Quality team uses internally: a click ID plus a feature vector describing why the interaction fails human benchmarks.
Meta's manual billing dispute system asks for FBCLIDs (Facebook Click IDs) and a narrative explanation. They accept CSV exports from Ads Manager with columns: date, campaign_id, ad_set_id, ad_id, fbclid, placement, device, country, clicks, spend. Behavioral evidence is optional but dramatically improves approval rates. BotRefund captures FBCLIDs alongside GCLIDs and produces a parallel Meta-ready evidence package.
| Mistake | Why it fails | Fix |
|---|---|---|
| Submitting only a dashboard screenshot | No click-level GCLIDs for Google to verify | Always include the CSV/JSON click export |
| Missing GCLID column (auto-tagging off) | Google cannot map your rows to their click logs | Enable auto-tagging; use a click tracker that preserves GCLID |
| Date range exceeds 60 days | Google's policy hard-limits refunds to the last 60 days | File claims monthly; automate evidence collection |
| Aggregated totals instead of per-click rows | Reviewers cannot audit individual interactions | Export at click granularity, not campaign-day rollups |
| No behavioral evidence column | Claim reads as "poor performance" not "invalid traffic" | Add bot_probability_score and signal flags per GCLID |
| Requirement | Detail |
|---|---|
| Primary format | CSV or JSON (machine-readable) |
| Required identifier | GCLID (Google Click ID) per row |
| Minimum columns | timestamp, click_id, campaign, ad_group, keyword, IP, device, country, conversion_status |
| Lookback window | 60 days from claim date |
| Supplemental formats | Screenshots, PDFs, narrative letters (secondary only) |
| Behavioral evidence | Strongly recommended; includes bot probability score and signal flags |
| Approval rate with forensic evidence | 83% (BotRefund client aggregate) |
Yes, but approval rates drop sharply. Google's default invalid-click filters already catch the obvious cases. A claim without behavioral proof essentially asks Google to re-run their own filters, which they rarely overturn.
You cannot reliably recover those clicks. GCLID is the primary key Google uses to match your evidence to their logs. Enable auto-tagging immediately and consider a click tracker that stores GCLIDs server-side as a backup.
Yes, provided the export includes GCLIDs and the behavioral signals are clearly labeled. BotRefund's evidence dossiers are formatted specifically for Google's review workflow and carry an 83% aggregate approval rate across clients.
Typically 2–4 weeks. Complex claims with hundreds of GCLIDs can take longer. Submitting clean, parser-ready CSV/JSON reduces back-and-forth requests for clarification.
No. Each platform has a separate dispute process, different click IDs (GCLID vs. FBCLID), and different evidence portals. Prepare separate packages.
The credited amount appears in your Google Ads billing summary as an "Invalid activity adjustment." It does not refund to your payment method; it becomes ad credit for future spend.
No official minimum, but claims under a few hundred dollars rarely justify the effort unless automated. BotRefund's free audit shows estimated recoverable amount before you commit.
Scenario 1: A SaaS company notices a spike in clicks from a single IP range with zero conversions. They export GCLID-level data from Google Ads, add bot probability scores from BotRefund, and submit a CSV file. Google approves the refund within 18 days.
Scenario 2: An e-commerce store uses auto-tagging but forgets to include the keyword column in their export. Google requests clarification, delaying the claim by 10 days. After resubmitting with the full column set, approval follows.
Scenario 3: A marketing agency tries to submit a PDF summary of click trends. Google rejects it as insufficient. They then generate a JSON export with GCLIDs and behavioral flags, leading to a successful claim.
When preparing evidence, ask: Does each row have a GCLID? Is the data in CSV or JSON format? Are the core nine columns present? Is the date range within 60 days? Have you added behavioral signals like bot probability score? If yes to all, your submission meets Google's primary requirements.
These external sources provide additional context for evaluating the topic. Their inclusion is not an endorsement.
BotRefund is a service that recovers wasted ad spend by detecting invalid clicks and securing refunds from Google, specifically for Performance Max campaigns. It identifies bot traffic, builds compliance-grade evidence, and negotiates refunds through Google's own invalid-traffic channels. In practice, that means you stop paying for clicks that never came from a real person.
Performance Max is a goal-based campaign type that uses Google's automation to place ads across Search, Display, YouTube, Gmail, and Maps. Because it relies heavily on conversion signals to optimize, bot clicks that trigger form submissions or purchases can poison the algorithm. BotRefund steps in to filter those fake conversions and recover the budget spent on them.
BotRefund performs three core jobs for Performance Max advertisers:
This combination matters because Performance Max is a black box. You don't control keywords or placements, and the algorithm decides where to show your ads. If bots are triggering conversions, the algorithm sees those as successes and doubles down on similar bot traffic. BotRefund breaks that cycle.
Performance Max campaigns are especially vulnerable to bot clicks for a few reasons:
Industry audits consistently place automated traffic between 9% and 20% of paid clicks. In the GoHACCP case study, BotRefund found that 22% of traffic in a Performance Max campaign was bots. That's nearly a quarter of the ad budget going to non-human visitors.
When bots trigger conversion events, they contaminate the data Google uses to optimize. The algorithm sees a 'successful' conversion and shifts bidding to target more users with the same bot fingerprint. This creates a feedback loop that wastes even more money.
BotRefund uses client-side behavioral analysis rather than simple IP blacklists. It installs a small script on your landing pages that tracks how visitors interact with the page. It looks for signals like:
These signals are combined into a confidence score. BotRefund claims 99% accuracy across 110+ signals. Every flagged click is logged with timestamp, IP, user agent, and behavioral evidence. This evidence is formatted into a refund-ready report that Google's compliance reviewers can understand.
The detection happens in real time, during the session. That's critical because it allows BotRefund to suppress the conversion pixel before it fires. If the pixel already fired, the bot session would be counted as a conversion and poison your bidding data.
Once BotRefund identifies invalid clicks, it compiles an evidence dossier for each one. This includes the Google Click ID (GCLID), the behavioral proof, and a clear explanation of why the click was non-human. BotRefund then submits these dossiers to Google through the platform's invalid-traffic channels.
According to BotRefund, 83% of refund claims filed are approved by ad platforms. The company negotiates directly with Google ad reps on your behalf. You don't need to handle the dispute process yourself.
BotRefund charges a 32% fee only upon recovery. That means you pay nothing upfront, and the fee comes out of the refunded amount. This aligns incentives: BotRefund only makes money when you get money back.
| Fact | Detail |
|---|---|
| Detection accuracy | 99% across 110+ forensic signals |
| Refund approval rate | 83% of filed claims |
| Pricing model | 32% fee only upon recovery, no upfront cost |
| Recovery potential | Up to 20% of ad spend lost to bot clicks |
| Case study result | GoHACCP recovered $32,400, saw 22% bot rate, and increased conversions by 20% |
| Setup time | One script tag, about 1 minute |
These numbers come from BotRefund's public materials and the GoHACCP case study. Your results will depend on your account's bot traffic level and Google's approval decisions.
BotRefund is not a replacement for good campaign management. It won't improve your ad creative, landing page experience, or bid strategy. It only addresses the problem of invalid traffic.
It also doesn't guarantee that every refund request will be approved. Google may deny claims if it deems the activity valid. The 83% approval rate means some claims are rejected, but the evidence quality helps maximize your chances.
BotRefund requires you to install a tracking script on your landing pages. If you can't add the script, the service won't work. It also works best when you have conversion tracking set up correctly, because the script needs to see conversion events to suppress them.
Getting started is straightforward:
You can start with a free bot audit—no credit card required. This gives you a clear picture of how much bot traffic is affecting your Performance Max campaigns before you commit.
Yes. BotRefund works with standard Performance Max, lead gen, and Smart Shopping campaigns. It detects bots, protects conversion signals, and provides refund evidence for any PMax campaign.
Most advertisers see initial refunds within 30 days, with full impact often visible in 60-90 days. The timeline depends on how quickly you install BotRefund, how much bot traffic you have, and Google's review process.
No. BotRefund suppresses only non-human conversion events. Real human conversions are unaffected. This actually improves your conversion data quality because it removes fake leads.
BotRefund uses 110+ forensic signals to build evidence, and its 83% approval rate means most claims are approved. If a claim is denied, you can review the evidence and decide whether to appeal. BotRefund's team can help with that.
Yes. BotRefund doesn't require ad account credentials for the audit. It uses a client-side script and works through Google's official invalid-traffic channels. There's no risk of violating Google Ads policies.
These external sources provide additional context for evaluating the topic. Their inclusion is not an endorsement.
See how this page can help with your next step.
BotRefund's prediction AI is a machine-learning engine that scores each website visitor to determine the probability they are a bot. It does not rely on a single tell such as an IP address or a user-agent string. Instead, it ingests 106 independent checks — covering browser fingerprint, network characteristics, device attributes, and behavioral biometrics — and weighs the complete pattern to reach a verdict.
The model treats every signal as evidence, not a verdict. A single anomaly such as impossible tab speed or superhuman input speed is kept as one objective fact and cross-checked against the other 105 signals. Only when the full picture corroborates the same story does the AI classify the visit as bot or human. This corroboration approach is what drives the stated 99% accuracy.
Each visitor session generates a stream of telemetry: mouse movements, click timing, scroll behavior, keyboard cadence, browser API responses, network latency patterns, and hardware rendering fingerprints. The AI does not apply a hard threshold to any one metric. It evaluates how all signals fit together. For example, a visitor on a corporate VPN might show unusual network characteristics, but their mouse tremor, hesitation pauses, and scroll variance still match human behavior. The model weighs the human-consistent signals more heavily than the network anomaly.
This design mirrors how a human investigator would review a case. No single fingerprint proves identity; the conclusion emerges from the convergence of many independent observations. The AI automates that convergence at millisecond speed for every session.
BotRefund groups its 106 checks into four evidence categories. Browser evidence covers canvas fingerprinting, WebGL parameters, font enumeration, and API consistency. Network evidence includes IP reputation, proxy signatures, TLS fingerprint, and connection timing. Device evidence captures hardware concurrency, battery status, screen properties, and sensor availability. Behavioral evidence records pointer jitter, click latency distributions, scroll velocity profiles, form interaction patterns, and session duration distributions.
One documented check is Impossible Tab Speed. Scripts can send clicks and scrolls, but they struggle to reproduce the varied timing, movement, and hesitation of real people. The check looks for a mismatch that a real browsing session does not normally create. Another is Superhuman Input Speed (<1ms), which identifies interactions that happen faster than a person could realistically perform. Others include Absence of Humanlike Mouse Tremor, Grid-Aligned Movement Patterns, and Unnatural Session Durations. Each check adds one objective fact to the pool the AI weighs.
Traditional bot defenses often rely on blocklists or single heuristics: block this IP, challenge that user-agent, flag this velocity. Modern botnets rotate residential proxies, spoof fingerprints, and mimic human timing distributions well enough to bypass any single rule. A rule-based system faces a dilemma: tighten the rule and catch more bots but increase false positives, or loosen it and let bots through.
The prediction AI sidesteps this trade-off. Because it requires multiple independent signals to align before classifying a visit as a bot, a sophisticated bot that nails timing but fails on pointer tremor or browser API consistency still gets caught. Conversely, a genuine user on an unusual device or network who exhibits natural behavior across the behavioral and browser dimensions passes. Accuracy comes from corroboration, not one browser tell.
For each click, the system produces a bot probability score and a set of evidence tags showing which checks fired. The evidence includes click IDs (GCLIDs for Google, fbclids for Meta), session recordings, and the specific behavioral signals that contributed to the score. This package becomes the refund-ready evidence that BotRefund's specialists submit to Google and Meta when disputing invalid clicks.
Advertisers see the data in a dashboard that separates human traffic from invalid traffic, shows the budget impact, and provides one-click dispute report generation. The AI's classification is the foundation; the evidence package is what makes the refund claim stick.
The prediction AI classifies visits; it does not block traffic at the network edge. BotRefund operates client-side via a JavaScript snippet, so it sees the browser after the click has already landed. It cannot prevent the click from being charged. Its role is detection, documentation, and evidence generation for refund recovery.
The 99% accuracy figure applies to the classification task under the conditions BotRefund measures. It does not guarantee a 99% refund recovery rate. Refund outcomes depend on platform policies, evidence acceptance, and the advertiser's account history. The source pack notes an 83% refund success rate for high-volume advertisers, which reflects the end-to-end process including negotiation, not the AI alone.
Privacy tools, corporate networks, and unusual devices can produce unexpected behavior for genuine people. The AI keeps anomalous signals as evidence rather than verdicts, but edge cases exist where a real user's full pattern looks atypical enough to be flagged. Advertisers should review flagged sessions before submitting disputes.
Server-side audits look at server log files: IP addresses, request headers, user-agent data. They catch basic scraper bots but struggle with advanced botnets that use residential proxies and real browser engines. Client-side audits analyze the visitor's browser environment and behavior in real time. They see mouse tremor, focus events, rendering pipelines, and timing distributions that never reach the server.
IP blacklists are reactive and easily rotated. Behavioral signals are harder to forge at scale because they require simulating the full physical interaction stack — hardware interrupts, OS scheduling, browser event loop — not just network attributes. The prediction AI's strength is evaluating the behavioral stack holistically, not checking a list.
| Fact | Detail | Source |
|---|---|---|
| Core function | Machine-learning engine that scores each visitor by weighing 106 independent browser, network, device, and behavior signals | S1 |
| Classification method | Cross-checks every anomaly against the full pattern; treats each signal as evidence, not a verdict | S1 |
| Stated accuracy | 99% accuracy in identifying a visit as bot or human | S1 |
| Evidence categories | Browser fingerprint, network characteristics, device attributes, behavioral biometrics | S1 |
| Example checks | Impossible Tab Speed, Superhuman Input Speed (<1ms), Absence of Humanlike Mouse Tremor, Grid-Aligned Movement Patterns, Unnatural Session Durations | S1, S2 |
| Output per click | Bot probability score, evidence tags, click IDs (GCLID/fbclid), session recordings | S2 |
| Refund success rate (high-volume) | 83% refund success rate for high-volume advertisers | S2 |
| Budget impact claim | Bots steal up to 20% of Google and Meta ad budget | S2 |
| Deployment | Client-side JavaScript snippet; does not block traffic at network edge | S1, S2 |
No. The AI classifies visits and generates evidence. BotRefund does not operate as a firewall or edge blocker. The evidence is used to file refund claims with Google and Meta.
Privacy tools, corporate networks, and unusual devices can produce unexpected behavior. The AI keeps anomalous signals as evidence rather than verdicts and cross-checks across 106 signals, but edge cases exist. Advertisers should review flagged sessions before submitting disputes.
Residential proxies make IP-based filtering ineffective. The AI evaluates browser fingerprint consistency, behavioral biometrics (pointer jitter, click latency, scroll variance), and device rendering signals that are difficult to forge even when the network layer looks clean.
The system captures the GCLID (Google) or fbclid (Meta) alongside the behavioral evidence and session recording. This package becomes the refund-ready dispute documentation submitted to the ad platforms.
The source pack states 99% accuracy as BotRefund's own measure. No third-party audit is cited in the provided materials. Treat it as a vendor claim until verified independently.
Yes. The same client-side telemetry and prediction engine applies to clicks from Meta campaigns. BotRefund captures fbclids and generates Meta-compliant dispute evidence.
The source pack describes the AI as part of BotRefund's end-to-end flow: detection, evidence capture, specialist submission, and negotiation. The materials do not describe a standalone API or self-serve classification-only tier.
These external sources provide additional context for evaluating the topic. Their inclusion is not an endorsement.
Security experts consistently recommend layered bot detection—running multiple independent checks and weighing them together—because modern bots are built to defeat any single signal. Fraud networks now use AI to simulate human mouse curvature, click intervals, and scrolling patterns, and they route traffic through residential proxy botnets to present legitimate-looking IP addresses. No single detection method survives that level of evasion for long.
The core expert principle is corroboration: each check adds one objective fact about a visit, and a reliable verdict comes from testing whether multiple signals tell the same story. BotRefund applies this principle with 106 independent checks across browser, network, device, and behavior evidence, then feeds the complete pattern into a prediction AI that identifies a visit as bot or human with 99% accuracy. A single anomaly is treated as evidence, not a verdict, because privacy tools, corporate networks, and unusual devices can produce unexpected behavior for genuine people.
Basic bot detection relies on one signal—an IP block, a user-agent string, or a simple rate limit. That worked when bots were crude scripts running from data centers. It does not work now.
Today's fraud networks use several evasion techniques that each defeat a different single-check approach:
If your detection relies on one signal, an attacker only needs to defeat that one signal. Multiple checks force the attacker to defeat all of them simultaneously and consistently, which is a much harder problem.
Layered detection does not mean stacking rules until something triggers. It means collecting independent evidence categories and evaluating how they fit together. BotRefund's approach illustrates this structure:
This three-step structure—independent evidence, cross-checked context, AI prediction—is what makes layered detection more accurate than any single check or simple rule combination.
Effective layered detection draws from multiple independent evidence categories so that evading one category does not compromise the whole system. BotRefund's 106 checks span four main categories:
Checks that examine the browser environment itself. The Console Debug Evaluator tests whether browser APIs behave as designed or show signs of patching. The window.open Tamper check looks for mismatches in how the window.open function behaves, since scripts can send clicks and scrolls but struggle to reproduce the varied timing and hesitation of real people. These checks catch automation tools that modify the browser to hide their presence.
Checks that examine how the visitor interacts with the page. BotRefund monitors several behavioral signals: ghost click detection catches click activity without the natural sequence of human intent; honeypot trap interactions watch for bots that respond to hidden or deceptive page elements; robotic linear mouse movements flag unnaturally straight pointer paths; absence of humanlike mouse tremor looks for the tiny imperfections typical of human movement; superhuman input speed identifies interactions faster than a person could perform; grid-aligned movement patterns detect movement that snaps to precise lines; absence of clicks or scrolling highlights sessions too static for a real browsing journey; and unnatural session durations catch visit lengths too short, too long, or too uniform to be human.
Checks that examine the network context of the visit, including IP reputation, connection patterns, and whether the traffic originates from known proxy or data center ranges. Network evidence alone is not enough because residential proxies make IP-based verdicts unreliable, but it adds one more independent fact that can corroborate or contradict other signals.
Checks that examine the device fingerprint—hardware properties, screen dimensions, installed fonts, and other device-level characteristics. Like network evidence, device evidence is one piece of the puzzle, not a standalone verdict.
The most important expert advice is this: a single anomaly is not a bot verdict. This principle has two sides, and both matter.
On the bot side, a sophisticated bot may defeat one check. It may simulate human mouse movement, use a residential IP, and patch its browser APIs. But defeating 106 independent checks simultaneously and consistently across browser, network, device, and behavior categories is far harder. The more checks you run, the more likely the bot slips on at least one signal.
On the human side, real users trigger anomalies too. Privacy tools, corporate VPNs, travel, and unusual devices can produce unexpected behavior. A user on a corporate network might show an IP pattern that looks like a data center. A user with a privacy extension might trigger a browser API mismatch. A user on an unusual device might fail a fingerprint check. If you treat any single anomaly as a bot verdict, you block real people.
Corroboration solves both problems. When multiple independent signals agree, you can trust the verdict. When they disagree, you investigate further rather than blocking. BotRefund's AI weighs the complete pattern, which is how it reaches 99% accuracy without treating every anomaly as fraud.
Ignoring layered detection has direct financial consequences. Bot clicks steal up to 20% of Google and Meta ad budgets, according to BotRefund's data. Bots click your ads, consume your budget, distort your cost-per-acquisition metrics, and poison your conversion data so that ad platform AI optimizes toward invalid traffic.
The damage compounds over time. If your conversion pixels fire on bot clicks, Google and Meta's optimization algorithms learn from that bad data and show your ads to more bots. Your CAC metrics look worse because real conversions are diluted by fake ones. Your sales team wastes time on unreachable leads from form spam. And if you later file a refund claim with Google or Meta, you need evidence—not a single signal—to prove the clicks were automated.
A real example: FinTrust, a modern neobank, faced massive bot registration attempts mimicking real users on search ad landing pages. The bots distorted CAC metrics and wasted ad spend. BotRefund's behavioral auditing suppressed conversion events for automated browser emulation signals, ensuring Facebook and Google AI trained only on verified bank accounts. The result was $140,000 in refunded ad spend, a 14% average bot click rate identified, and an 18% conversion rate increase after suppression.
| Aspect | Detail |
|---|---|
| Number of independent checks | 106 checks across browser, network, device, and behavior evidence |
| Accuracy | 99% accuracy from corroboration, not a single browser tell |
| Detection approach | Independent evidence, cross-checked context, AI prediction |
| False positive handling | A single anomaly is evidence, not a verdict; cross-checked against other signals |
| Setup time | About one minute, no credit card required |
| Refund recovery period | Google Ads spend dating back to 2017 |
| Ad budget at risk | Bot clicks steal up to 20% of Google and Meta ad budgets |
Several mistakes undermine bot detection even when teams try to use multiple checks:
Layered detection matters most when you spend meaningful budget on Google or Meta ads and when bot traffic directly drains that budget. If you run lead campaigns, form-based conversions, or any campaign where bots can submit fake leads, multiple checks are essential.
It also matters when you plan to file refund claims with ad platforms. Google and Meta require evidence to approve refund disputes. A single signal is not enough—you need audit-ready proof that shows the complete pattern of automated behavior. BotRefund captures video proof for each detected bot click and generates audit-ready refund dispute reports.
If you spend under $10,000 per month on ads, the risk is lower but not zero. If you spend over $50,000 per month, the risk is significant. At enterprise spend levels above $250,000 per month, layered detection is not optional—it is a budget protection requirement.
Layered detection is powerful, but it has limits. No system catches every bot. Sophisticated fraud networks continue to evolve, using AI to simulate human behavior and residential proxies to hide their origins. Detection must improve continuously to keep up.
Layered detection also cannot replace good campaign hygiene. If your targeting is too broad, your landing pages are exposed to low-quality inventory, or your conversion events fire without meaningful engagement, bots will find gaps. Detection catches bots at the visit level, but campaign structure determines how much budget is exposed to risk in the first place.
Finally, layered detection does not automatically produce refunds. It produces the evidence needed to file refund claims. The refund process still requires negotiation with Google and Meta, and approval depends on the platform's review of your evidence.
Because modern bots are built to defeat single checks. They rotate IPs, mimic human behavior with AI, and patch browser APIs. Multiple independent checks force the bot to defeat all of them consistently, which is far harder. A single strong check also produces false positives on real users who trigger anomalies for legitimate reasons.
There is no universal number, but BotRefund uses 106 independent checks across browser, network, device, and behavior evidence. The key is not the count but the independence of the checks and whether they are cross-validated by an AI model that weighs the complete pattern. Ten checks that all measure the same thing are less useful than three checks that measure independent signals.
BotRefund can be added to a website in about one minute with no credit card required, and a free bot audit is available. Pricing scales with ad spend range, from under $10,000 per month to over $1 million per month. Check the pricing page for specific tiers.
Compare solutions when you are spending enough on ads that bot traffic has a measurable budget impact, when you plan to file refund claims and need audit-ready evidence, or when your current detection is producing too many false positives or false negatives. Look at how many independent checks each solution runs, whether they use an AI model to weigh signals, and whether they produce evidence ad platforms accept.
BotRefund treats a single anomaly as evidence, not a verdict. Each signal is cross-checked against independent browser, network, device, and behavior data. The AI model weighs the complete pattern, so a real user who triggers one anomaly—like a privacy tool causing a browser API mismatch—is not blocked unless other signals corroborate the bot verdict.
You need evidence that shows the pattern of automated behavior for each disputed click. BotRefund captures video proof for each d
WebGL hardware fingerprinting accuracy hinges on six main variables: GPU driver versions, browser rendering engines, operating system graphics stacks, hardware acceleration settings, physical GPU model selection, and privacy tool interference. When any of these change, the rendered output shifts, altering the device signature.
For example, a GPU driver update can change texture compression or shader execution, leading to different pixel outputs. Similarly, switching browsers or disabling hardware acceleration modifies how WebGL commands translate to screen data. Privacy tools may mask or randomize responses, creating mismatches between claimed and actual hardware behavior.
WebGL (Web Graphics Library) lets websites render 2D and 3D graphics directly in the browser using the device's GPU. Every modern browser supports WebGL, and it powers interactive data visualizations, games, and more.
The process starts when a script queries the WebGL API for hardware details. It collects parameters like the GPU vendor string, renderer string, and extension support. Then it runs a rendering test, drawing invisible shapes on a canvas and capturing the pixel-level output.
This output acts as a device-specific identifier. Because GPUs render slightly differently based on hardware and software configurations, the resulting hash helps distinguish devices without cookies or login data. BotRefund uses this as one of 110+ independent checks to build a reliable picture of whether a visit is human or automated.
Several technical variables affect how stable and unique a WebGL fingerprint remains. Understanding these helps explain why fingerprints change and how to weigh them in detection systems.
GPU drivers translate high-level rendering commands into low-level instructions for the graphics card. Driver updates often fix bugs, improve performance, or change how shaders execute.
A driver update can alter texture compression, memory allocation, or precision in floating-point calculations. These subtle changes shift the pixel output, causing the fingerprint hash to change even on the same hardware. Driver updates can happen monthly or quarterly, each potentially adjusting shader execution or texture handling.
Different browsers use distinct rendering backends. Chrome and Edge rely on ANGLE (Almost Native Graphics Layer Engine) to translate WebGL to DirectX on Windows. Firefox uses its own implementation, and Safari uses Metal on macOS.
Each backend interprets WebGL commands slightly differently. This means the same device can produce different fingerprints across browsers. Version upgrades also introduce changes to shading pipelines or anti-aliasing behavior, further affecting stability.
The OS graphics stack sits between the browser and the GPU. Windows, macOS, and Linux handle context creation, memory management, and synchronization differently.
OS updates can modify driver interfaces or security settings. For example, enabling or disabling hardware acceleration in system settings changes how WebGL accesses the GPU, altering the fingerprint output. Corporate networks often route traffic through security gateways that modify headers or block certain APIs.
Users can disable hardware acceleration in browser settings or system preferences. When disabled, the browser may fall back to software rendering, which bypasses the GPU entirely.
Software rendering produces vastly different pixel outputs. This switch creates a new fingerprint profile, reducing stability. It also affects performance, often slowing down rendering tasks. Privacy-conscious users frequently disable this feature.
The physical GPU model determines available features, memory size, and compute capabilities. Devices with multiple GPUs (integrated + discrete) may switch contexts depending on power settings.
The browser may select a different GPU for rendering based on workload or battery mode. This choice changes the vendor and renderer strings, leading to different fingerprints. Travel and network changes can trigger GPU switching on laptops.
Privacy tools like anti-tracking extensions or browsers with fingerprint randomization intentionally modify WebGL responses. They may mask the GPU vendor or return generic values.
Spoofed profiles in automation tools can claim one device while their actual hardware behavior tells another story. These mismatches are detectable but can complicate accuracy for genuine users. Browsers designed for privacy (like Tor or hardened Firefox) randomize or block WebGL access.
Beyond core technical variables, environmental conditions introduce additional variance that affects fingerprint stability and detection accuracy.
Virtual machines and containerized environments often present generic or inconsistent GPU identifiers. The hypervisor's graphics passthrough implementation affects what the guest OS reports. These artifacts create detectable patterns but also cause legitimate variation for cloud-based users.
Remote desktop protocols (RDP, VNC) and game streaming services render frames on a host then encode video for the client. The client's WebGL context reflects the host's GPU, not the local device. This creates a mismatch between claimed device properties and actual rendering behavior.
Connecting external monitors, changing resolution, or adjusting color profiles can alter rendering paths. Multi-GPU laptops may switch between integrated and discrete graphics when displays are added or removed. Each configuration change produces a new fingerprint baseline.
Laptop power modes (performance, balanced, battery saver) influence GPU clock speeds and feature availability. Thermal throttling under sustained load reduces compute precision. These dynamic states cause intra-session fingerprint drift that detection systems must accommodate.
Engineers configuring fingerprinting systems must decide how to weight WebGL signals against other evidence. The goal is high precision without penalizing legitimate users.
WebGL signals work best as corroborating evidence, not primary verdicts. BotRefund feeds WebGL texture constraint data into a prediction AI that evaluates the holistic picture across browser integrity, network origin, hardware fingerprints, and user telemetry. By corroborating all factors together, it identifies invalid clicks with 99% precision.
A single anomaly is not a bot verdict. Privacy tools, travel, corporate networks, and unusual devices can produce unexpected behavior for genuine people. The signal stays as evidence and cross-checks against independent browser, network, device, and behavior data.
Static thresholds fail because legitimate fingerprint drift occurs regularly. Adaptive thresholds that account for known driver release cycles, browser update schedules, and OS patch cadences reduce false positives. Systems should track fingerprint stability over time per device cohort.
Effective detection correlates WebGL data with network context, pointer and scroll behavior, click and typing timing, rendering details, navigation flow, and session replay. No single signal proves fraud, but a consistent cluster supports high-confidence investigation. BotRefund analyzes 50+ detection vectors for this purpose.
Understanding how accuracy plays out in practice helps engineers set realistic expectations and design robust systems.
A user updates their GPU driver monthly. Each update shifts the fingerprint slightly. Over six months, the fingerprint may change enough to trigger a naive detection rule. A well-designed system recognizes this pattern as normal driver evolution.
A user runs Firefox with strict tracking protection and canvas fingerprinting blockers. WebGL returns generic values. The fingerprint lacks uniqueness but the behavior is consistent. Cross-checking with mouse movement patterns and network reputation confirms legitimacy.
An automation framework claims to be Chrome on Windows with an NVIDIA RTX 3080. WebGL vendor string matches. However, the texture rendering output shows precision artifacts consistent with software rendering on a Linux host. The mismatch between claimed GPU and actual rendering behavior reveals the spoof.
Employees access via VDI (Virtual Desktop Infrastructure). All sessions report identical GPU identifiers. Network origin is a known corporate range. Behavioral patterns show human-like variance. The uniform fingerprint is expected and not suspicious in context.
WebGL fingerprinting isn't foolproof. Accuracy drops in certain scenarios where legitimate users experience fingerprint shifts or where adversaries invest in high-fidelity spoofing.
Advanced bot frameworks now replicate real GPU rendering pipelines using headless Chrome with real GPU acceleration in cloud instances. They produce pixel-perfect output matching target devices. Detection then relies on behavioral and network signals rather than WebGL alone.
New GPU architectures (e.g., Apple Silicon transitions, Intel Arc, new NVIDIA/AMD generations) introduce rendering behaviors not yet in fingerprint databases. Early adopters generate novel fingerprints that may flag as anomalous until baselines update.
Browsers designed for privacy (like Tor or hardened Firefox) randomize or block WebGL access. This reduces fingerprint accuracy for genuine privacy-focused users. Systems must degrade gracefully when WebGL signals are unavailable or generic.
Switching devices or upgrading hardware changes the fingerprint entirely. Users who update their GPU driver or OS expect normal browsing behavior, not detection flags. Session continuity signals (cookies, login state, behavioral patterns) help bridge these transitions.
WebGL fingerprinting achieves maximum value when integrated into a comprehensive detection architecture that combines hardware, network, and behavioral evidence.
BotRefund operates as an evidence layer that connects suspicious sessions, conversion protection, and refund-ready reports in one workflow. It captures browser and device consistency, network context, pointer and scroll behavior, click and typing timing, rendering details, navigation flow, and session replay.
Invalid sessions must not trigger conversion pixels. Real-time filtering prevents Smart Bidding algorithms from optimizing toward bot traffic. BotRefund suppresses pixels for detected non-human sessions, preserving campaign model integrity.
To recover money from ad platforms, you need click IDs (GCLIDs) linked to behavioral proof of invalidity. The system associates each session with campaign, click ID, placement, and timestamp. It preserves evidence after campaigns pause and exports readable reports for platform review.
Detection runs at the edge with zero critical rendering path delay (0ms latency). This ensures real-time decisions without page performance impact. The single Cloudflare edge script setup takes 60 seconds.
| Fact | Detail |
|---|---|
| Technology | WebGL API (Web Graphics Library) |
| Primary Input | GPU vendor, renderer, extensions, pixel output |
| Accuracy Range | Up to 96% device distinction when combined with other signals |
| Change Triggers | Driver updates, browser changes, OS updates, settings shifts, GPU switching, privacy tools |
| Privacy Impact | Does not require user consent; tracks without cookies |
| Common Use Case | Bot detection, multi-account identification, fraud prevention, ad spend recovery |
| Detection Vectors | 50+ vectors in BotRefund; 110+ total signals |
| Precision Target | 99% when session evidence supports high confidence |
| Refund Approval Rate | 83% with Google & Meta |
To maintain accuracy without penalizing legitimate users, treat WebGL as one piece of a larger puzzle. Cross-check it against network origin, cursor behavior, and session telemetry.
Use edge AI models to weigh the complete multi-layer pattern instead of relying on fragile static rules. This approach identifies invalid clicks with higher precision. Track fingerprint stability per device cohort over time. Update baselines when new GPU architectures or browser engines release.
Degrade gracefully when WebGL is blocked or spoofed. Rely on behavioral and network signals as primary indicators in those cases. Document all threshold decisions and review false positive rates weekly.
Updates to GPU drivers, browsers, or operating systems can alter rendering output. Disabling hardware acceleration or using privacy tools also shifts the fingerprint. Switching between integrated and discrete GPUs on laptops causes changes.
It's useful as part of a multi-signal system. Alone, a single anomaly isn't enough. But combined with other data, it strengthens detection confidence. BotRefund achieves 99% precision by corroborating WebGL with 100+ other signals.
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