Stop click stuffing in your affiliate programme
Click stuffing is the dominant affiliate fraud technique, letting dishonest publishers steal commission credit from legitimate partners by secretly dropping tracking cookies on users who never engaged with their content.
Trusted by leading brands worldwide
Click stuffing is the most common and costly threat to affiliate programme integrity
Click stuffing, also called cookie stuffing, works by placing affiliate tracking cookies on users' devices without any genuine interaction. Fraudulent publishers inject cookies through hidden iframes embedded in unrelated web pages, malicious browser extensions, or ad creatives that fire tracking scripts when loaded. The user sees nothing and clicks nothing, but their browser now carries the fraudulent publisher's affiliate cookie. When that user later converts through organic search, direct navigation, or a legitimate affiliate's link, the stuffed cookie appears last in the attribution chain and claims the commission. Your legitimate partners lose the credit they earned, and your programme pays out for traffic the fraudulent publisher never drove.
Click stuffing is particularly destructive to programme integrity because it operates at scale invisibly. A single fraudulent publisher running a cookie stuffing operation can affect thousands of conversions per day, systematically siphoning commission credit from every legitimate partner in your programme. Your CPA metrics appear healthy because conversions are happening, but the commission budget is flowing to a publisher that contributed nothing to those conversions. Tapper detects click stuffing by analysing the full attribution path of every conversion, flagging cases where the attributed click is inconsistent with the user's actual session and browsing behaviour.
How Tapper stops click stuffing on Affiliate
Three steps from connection to clean data, no engineering required.
01
Connect your affiliate tracking platform
Tapper integrates with your affiliate network or in-house tracking setup, monitoring every click and its full attribution context as conversions flow through your programme.
02
Attribution path anomalies detected at conversion level
Tapper analyses the relationship between each attributed click and the conversion it claims credit for, flagging cases where the click-to-conversion path, timing, session data, or device signals indicate cookie stuffing rather than genuine engagement.
03
Legitimate partners protected, fraudulent commissions rejected
Stuffed conversion attributions are identified and rejected before commission calculations, restoring credit to the legitimate partners who drove genuine engagement and preventing payouts to publishers operating cookie stuffing schemes.
Click stuffing by the numbers
Data from Tapper's platform analysis and published industry research.
10-15%
Of affiliate spend lost to fraud on average
64%
Of affiliate programmes experience significant fraud
1st
Click stuffing is the most prevalent affiliate fraud type
Tapper vs Affiliate Network Fraud Detection
See exactly where the gaps are, and why they matter to your bottom line.
Click stuffing detection
Full attribution path and session behaviour analysis
Rule-based thresholds, easily bypassed by sophisticated stuffers
Per-conversion attribution review
Every conversion attribution verified against session data
Spot checks and aggregate anomaly alerts
Legitimate partner protection
Credit restored to genuine publishers on detection
Commission disputes after payout
Detection speed
Under 3 seconds
Daily or weekly batch review
Trusted by industry leaders
See how companies are protecting their ad budgets and improving ROI with Tapper.
“Tapper played a key role in improving the efficiency of Du's performance marketing activity by addressing traffic quality issues within campaigns. Following implementation, Du achieved a 13% reduction in CPA and an 8.6% increase in order rate, demonstrating a clear improvement in conversion quality and overall campaign effectiveness.”
Joseph Elbcherrawy
Client Leadership Director, Mindshare, a WPP Media Brand
“During our Tapper trial for INFINITI, we uncovered low-quality traffic that wasn't visible inside the platforms. Removing it delivered a 14% uplift in conversions and an 11.4% reduction in CPA - a meaningful efficiency gain for INFINITI's 2026 growth plans.”
David Barnes
Data & Technology Lead, Omnicom Group
“With Tapper's protection we were able to identify and block invalid clicks in real time. The impact was immediate as our cost per acquisition dropped by 30% and ROAS improved significantly. More importantly, Tapper gives us the confidence that our campaigns are reaching genuine customers, which makes it truly invaluable.”
Dimitris Bakas
Senior Performance Marketing, Public Group
“We started using Tapper to get better visibility on where our clicks were coming from, and ended up cutting wasted spend by over 12%. The performance uplift was clear, and for the first time, we could trust the numbers we were seeing. It's a total game-changer for campaign integrity.”
Stuart Parkin
Director of Operations, Regit
“Tapper's blocking technology purifies our paid media traffic which roughly equates to a 36x return against its subscription costs. It's certainly one of the easiest-to-implement tools in our entire marketing stack.”
Reno Mindemann
Head of Growth, Kama Capital
“We've been using Tapper for over a year now, and it has become a core part of how we run paid media. Invalid traffic was always something we knew existed but couldn't really act on. Tapper changed that. We're now saving up to $50K per year, and on PureSquare specifically, we saw around a 20% decrease in CPA. Based on these results, we decided to roll it out across other ventures under Disrupt as well.”
Nurkan Kirkan
GTM Consultant / Paid Growth, Disrupt.com
Trusted by leading brands worldwide
Frequently asked questions
Everything you need to know about stopping click stuffing on Affiliate.
Click stuffing places affiliate tracking cookies on a user's browser without any genuine click from the user. The most common methods are hidden iframes on web pages that load affiliate tracking URLs invisibly, browser extensions that inject cookies automatically, and ad creatives that fire tracking scripts when displayed. The user is unaware their browser now carries a tracking cookie from a publisher they never interacted with.
Key indicators include: publishers with disproportionately high conversion volumes relative to their apparent traffic quality, conversions where the attributed click timestamp is hours or days before the conversion with no meaningful intervening engagement, and geographic or device mismatches between the click and the conversion. Tapper surfaces all of these signals automatically, with a fraud score and evidence report for each flagged conversion.
Yes. Tapper operates alongside your existing affiliate network, adding a detection layer that analyses the attribution data your network already collects. You do not need to change your network, your tracking setup, or your publisher agreements to use Tapper. Detection and fraud reporting work with your current programme infrastructure.
Other fraud types affecting Affiliate
Affiliate campaigns face multiple fraud vectors. Tapper covers them all.
Stop click stuffing on Affiliate today
Join advertisers who stopped paying for traffic that was never real. Book a demo and we will show you exactly what Tapper blocks on your account.