Pixalate Launches Mobile App Pre-Bid Blocklist to Combat Ad Fraud
Event summary
- Pixalate introduced the High Risk Apps (HRA) mobile app pre-bid blocklist on March 11, 2026, combining persistent IVT signals, app store compliance, app-ads.txt authorization, and privacy risk into a unified feed.
- The blocklist evaluates apps against 9 risk dimensions, including high GIVT, high SIVT, missing privacy policy, abandoned apps, and more.
- The blocklist is updated daily and available as a CSV feed through AWS RTB Fabric, APIs, FTP, or S3 bucket.
- Pixalate aligns with MRC guidance to use lists of known dangerous or fraudulent sources in addition to impression-level IVT classifications.
The big picture
Pixalate's High Risk Apps blocklist addresses the growing need for pre-bid filtering in programmatic advertising, aligning with MRC guidelines. The solution separates app-level structural risk from impression-level IVT classification, providing buyers with independent control over app-level blocking and impression-level filtering. This move reflects the industry's shift towards proactive fraud prevention and compliance with privacy regulations.
What we're watching
- Ad Fraud Prevention
- How the adoption of Pixalate's pre-bid blocklist will affect the programmatic advertising supply chain and reduce ad fraud.
- Regulatory Compliance
- Whether the blocklist's privacy risk signals will help advertisers comply with global privacy laws and reduce regulatory exposure.
- Market Dynamics
- The pace at which other ad tech platforms will adopt similar pre-bid blocklist solutions to enhance ad quality and transparency.
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