Stop click farms on open exchange programmatic campaigns
Click farms use real devices operated at scale to generate invalid interactions on open exchange inventory, defeating device-signal invalid traffic filters and inflating your CPM and CPC costs.
Trusted by leading brands worldwide
Click farms on open exchange exploit minimal publisher vetting to generate revenue at your expense
The open exchange model pays publishers a revenue share for each click and impression their inventory generates. This creates a straightforward financial incentive for invalid publishers: the more click farm traffic they route through their inventory, the more they earn at your expense. Click farms use real consumer devices, managed by low-wage workers or automated device management software, to generate invalid interactions that are almost indistinguishable from genuine user behavior at the device signal level. Standard IVT filters, which rely on known bot fingerprints and datacenter IP ranges, cannot detect this type of invalid traffic.
The open exchange makes click farms particularly effective because publisher vetting is minimal. Bad actors can join the bid stream, serve low-quality inventory, and route click farm traffic without the scrutiny that private marketplace or programmatic guaranteed deals would require. Your display campaigns show rising click-through rates and engagement metrics, but conversions remain flat because no real buyer is behind any interaction. Your DSP optimizes toward these invalid engagement signals, pushing spend toward inventory and audience segments associated with click farm activity.
How Tapper stops click farms on Display open exchange
Three steps from connection to clean campaign data, no engineering required.
01
Connect your programmatic buying stack
Tapper integrates with your DSP and monitors all click and impression data across your open exchange buys, establishing a baseline of genuine engagement patterns for comparison.
02
Click farm behavioral patterns identified through cluster analysis
Session depth analysis, interaction timing, and device cluster detection identify the repetitive, uniform patterns that click farm operations produce, even when using genuine consumer devices with real IP addresses.
03
Invalid inventory sources suppressed and excluded
Publishers linked to click farm activity are suppressed from your open exchange buying automatically, with invalid traffic evidence retained to support credit requests and inventory audits.
Click farms on Display open exchange 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 invalid traffic annually
17%
Of programmatic ads served to non-human traffic
3x
Higher invalid traffic on open exchange vs private marketplace
Tapper vs standard brand safety tools
Click farm detection
Behavioral and session-cluster analysis per publisher
Known-bad IP and device lists only
Real device farm identification
Device cluster and interaction uniformity scoring
Undetectable with standard brand safety tools
Open exchange publisher invalid traffic scoring
Per-publisher invalid traffic scoring and automated suppression
Domain-level brand safety checks only
Suppression list updates
Automated and instant on detection
Manual blocklist management required
Leading brands growing with Tapper
See how companies are protecting their ad budgets and improving ROI with Tapper.
13%
lower CPA
8.6%
higher order rate
“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
14%
more conversions
11.4%
lower CPA
“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
40%
higher conversion rate
“When we take low-quality traffic out of the funnel before it reaches the algorithm, the campaign optimizes against cleaner signals and the efficiency comes through quickly. For AMA Nissan, that was a 40% lift in conversion rate and a lower CPA on Google, with nothing else in the setup changing. That is the kind of result we want to offer clients as a matter of course.”
Sohail Khan
Senior Performance Manager, WPP Media MENA
Frequently asked questions
Open exchange inventory requires minimal vetting for publishers to access the bid stream. Bad actors can join exchanges, declare inventory across broad categories, and route click farm traffic through their placements with limited scrutiny. Private marketplace deals require direct publisher relationships and vetting that make click farm operations far harder to sustain.
Click farms inflate your click-through rate and engagement metrics while delivering zero real audience value. Your DSP interprets the invalid engagement signals as genuine audience interest and adjusts bidding and targeting accordingly, pushing your open exchange spend toward inventory sources and audience clusters associated with click farm activity. Conversions remain flat while costs rise.
Tapper provides per-publisher invalid traffic scoring across your open exchange buy, identifying the inventory sources generating click farm traffic. This data lets you build targeted suppression lists and, where applicable, submit evidence to your DSP or exchange for credit review. Tapper surfaces the inventory-level data that your DSP reporting aggregates away.
Other invalid traffic types on Display & programmatic open exchange
Stop click farms on your Display open exchange
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