Display & Programmatic Protection

Display & Programmatic ad fraud protection

Programmatic advertising's open exchanges are the highest-risk ad environment online. Domain spoofing, bot traffic, and ad stacking drain display budgets without delivering real impressions. Tapper protects your programmatic investment before a single fraudulent impression is counted.

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Trusted by leading brands worldwide

Open exchange programmatic is fraud's favourite hunting ground

Programmatic advertising's greatest strength is its ability to reach audiences at scale across millions of websites and apps. That same scale is also its greatest vulnerability. The open exchange model, where inventory is bought and sold in milliseconds through automated auctions, creates the ideal conditions for fraud: speed, scale, anonymity, and limited human oversight. Industry estimates put invalid traffic rates on open exchange inventory at 20-40%, meaning that for every $100 you spend on open programmatic, $20-40 reaches no real human eyes.

Domain spoofing is the most sophisticated form of display fraud. Fraudulent publishers misrepresent low-quality inventory as premium publisher placements by spoofing the domain name in the bid stream. Your DSP's brand safety filters show your ad appearing on a reputable news site; in reality, it is served on a bot farm. Ad stacking, where multiple ads are layered on top of each other with only the top ad visible, and invisible ad placements add additional vectors through which impression counts inflate while real viewability stays near zero.

Private marketplaces and programmatic guaranteed deals offer more protection than open exchange, but they are not immune. Sophisticated fraud operations have learned to infiltrate PMPs through fraudulent publisher applications and domain spoofing attacks that bypass standard verification. Even premium programmatic inventory requires active monitoring to ensure spend reaches real audiences. Tapper analyses the full impression and click chain to detect fraud at every tier of the supply path.

How Tapper protects your Display campaigns

Three steps from connection to clean data, no engineering required.

Connect your DSP or ad server

Tapper integrates with your demand-side platform or ad server, monitoring impression and click data across all programmatic inventory: open exchange, private marketplace, and programmatic guaranteed.

Invalid impressions and clicks filtered instantly

Domain spoofing, bot traffic, ad stacking, and invisible placements are identified and flagged. Invalid inventory is excluded from your active campaigns and added to ongoing suppression lists.

Optimise your programmatic buying toward quality

Tapper's ongoing analysis identifies high-fraud inventory sources and clean premium placements. Your buying decisions are informed by real viewability and engagement data, not inflated impression counts.

The Display fraud 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 in 2023

17%

Of programmatic ads served to non-human traffic

Higher fraud rates on open exchange vs private marketplace

Tapper vs Standard Brand Safety Tools

See exactly where the gaps are, and why they matter to your bottom line.

Capability

Tapper

Standard Brand Safety Tools

Domain spoofing detection

Instant domain verification and flagging

Post-bid analysis only

Bot traffic filtering

Behavioural and fingerprint analysis

Known-bad list matching

Inventory blocklist updates

Automated and instant

Manual or weekly updates

Visitor-level analytics

Full fraud classification per impression

Domain-level aggregate data

PMP fraud monitoring

Active monitoring of private deals

PMP often excluded from coverage

Cross-platform visibility

All channels in one dashboard

Display and programmatic only

Supply path analysis

Full bid-stream fraud detection

Surface-level brand safety only

Success stories

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

How much are you losing to Display fraud?

Use our IVT calculator to estimate your monthly wasted spend, then review the numbers with our team.

Calculate Your Wasted Spend

Frequently asked questions

Everything you need to know about Display & Programmatic fraud protection.

Domain spoofing is when a fraudulent publisher misrepresents their inventory in the programmatic bid stream, making low-quality or non-human traffic appear to come from premium publishers. Your brand safety reports show your ad appearing on a trusted news site; in reality it was served on a bot network. You pay premium CPMs for traffic with zero real audience value.

Safer, but not immune. PMPs have lower fraud rates than open exchange because publishers are vetted and inventory is curated. However, sophisticated fraud operations can infiltrate PMPs through fraudulent publisher partnerships and domain spoofing within deal parameters. Active monitoring is still required even in premium programmatic environments.

Ad stacking is when multiple ads are served in the same ad slot, layered on top of each other. Only the top ad is visible to the user, but all underlying ads register as delivered impressions. Advertisers whose ads are hidden beneath the visible ad pay for impressions that never had any chance of being seen.

Tapper integrates with your demand-side platform to monitor click and impression data. Identified fraudulent inventory sources are added to suppression lists that automatically apply to future buying decisions. Your DSP's targeting improves over time as Tapper continuously learns which inventory sources are clean.

Tapper complements brand safety tools like IAS and DoubleVerify rather than replacing them. Brand safety tools focus on content adjacency and viewability; Tapper specialises in identifying and blocking invalid traffic from bots, fraud operations, and spoofed inventory. Using both provides comprehensive programmatic protection.

Advertisers typically see measurable improvement within the first two weeks as Tapper builds a profile of high-fraud inventory in your buying environment. Viewability rates typically improve by 15-25% and click-through rates normalise to more realistic levels, giving you accurate benchmarks for campaign optimisation.