Misleading Adblocker Test Websites: A Critique from Brave
2025-02-20
Shivan Kaul Sahib, Lead for Privacy Engineering at Brave, criticizes many existing adblocker testing websites. These sites employ flawed methodologies, including arbitrary testing criteria, failure to emulate real-world scenarios, disregard for advanced features (like resource replacement), and inability to account for domain-specific rules. This leads to misleading results, even harming the adblocking ecosystem. Kaul Sahib argues that adblockers should be compared based on native support, performance, advanced features, and ethical practices, not low-quality tests. Brave refuses payments to unblock advertisers, collaborates with reputable testing sites, and strives for improved web privacy.