Click stuffing on private marketplace programmatic campaigns
Click stuffing can affect even curated PMP inventory, with fraudulent click injection corrupting the attribution data you rely on to evaluate your premium programmatic publisher relationships.
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Click stuffing in PMP deals corrupts deal performance data and attribution across premium inventory
Private marketplace deals are chosen for their quality and audience precision, but click stuffing can occur even within curated publisher environments. A publisher who passes PMP vetting on brand safety and content quality criteria can still embed hidden click injection mechanisms in their ad serving infrastructure. Because PMP deals operate at premium CPMs with the assumption of higher traffic quality, fraudulent click signals from curated inventory carry more weight in your attribution model and are less likely to be scrutinised than the same signals from open exchange inventory.
Click stuffing in PMP environments has a specific impact on deal evaluation. Your PMP publisher relationships are managed based on performance data: publishers that appear to drive strong click and conversion metrics retain or gain investment, while underperformers are deprioritised. When click stuffing inflates the engagement metrics of a PMP publisher, your deal investment decisions are made on corrupted data. You may increase commitment to a deal that is generating inflated signals while reducing spend against genuinely performing publishers whose clean click data shows lower but real engagement.
How Tapper stops click stuffing on Display private marketplace
Three steps from connection to clean campaign data, no engineering required.
01
Connect your programmatic tracking to Tapper
Tapper integrates with your DSP and click tracking infrastructure, monitoring every click event attributed to your private marketplace deals with the same analytical depth as open exchange traffic.
02
Injected clicks separated from genuine PMP user interactions
Interaction-level analysis identifies click signals inconsistent with genuine user actions within PMP inventory, including hidden iframe events, JavaScript-injected triggers, and automated click events from curated publisher placements.
03
PMP deal evaluation data corrected
Stuffed clicks from PMP publishers are excluded from deal-level performance metrics, giving you accurate engagement and attribution data to make informed decisions about your curated publisher relationships and deal investments.
Click stuffing on Display private marketplace by the numbers
Data from Tapper's platform analysis and published industry research.
20-40%
Average IVT rate on open exchange programmatic
$84B
Lost globally to ad fraud annually
17%
Of programmatic ads served to non-human traffic
3x
Higher fraud on open exchange vs private marketplace
Tapper vs Standard Brand Safety Tools
See exactly where the gaps are, and why they matter to your private marketplace performance.
Click stuffing detection in PMP deals
Interaction-level analysis distinguishing genuine from injected clicks in curated inventory
No click injection detection capability
PMP deal performance data accuracy
Stuffed clicks excluded from deal-level metrics and attribution
Deal metrics include all recorded clicks including injected
Attribution protection for PMP campaigns
Corrects attribution across all channels by removing PMP stuffed clicks
No multi-channel attribution correction
CTR accuracy per PMP publisher
Filters stuffed clicks from per-publisher CTR calculation
CTR includes injected click events without adjustment
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
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Frequently asked questions
Everything about click stuffing on Display & Programmatic private marketplace.
Yes. PMP publisher vetting focuses on content quality, brand safety credentials, and traffic sources, not on the specific mechanisms used to deliver clicks. A publisher that passes vetting can still embed click injection in their ad serving infrastructure. Brand safety and viewability checks do not analyse whether individual click events correspond to genuine user actions.
Your PMP deal investment decisions are based on publisher performance data. When click stuffing inflates engagement metrics for a curated publisher, you may increase commitment to that deal based on fraudulent signals while deprioritising genuinely performing publishers whose clean engagement data appears lower. Tapper corrects this by ensuring deal evaluation data reflects only genuine user interactions.
No. Tapper operates alongside your existing PMP infrastructure by integrating with your DSP and click tracking at the data level. No changes to deal structure, publisher contracts, or ad serving setup are required. Detection and reporting are applied to your existing traffic data without disrupting your publisher relationships or deal operations.
Other fraud types on Display & Programmatic private marketplace
Private marketplace campaigns face multiple fraud threats. Tapper protects against all of them.
Stop click stuffing on your Display private marketplace
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