Ad Blocker Effectiveness Test
How well does your ad blocker protect you?
Not all ad blockers are created equal. Some block ads but allow tracking scripts. Others block trackers but miss fingerprinting attempts. This test measures your actual protection level.
What We Test
Analytics
mediumGoogle Analytics, Facebook Pixel, Hotjar
Advertising
mediumDoubleClick, AdSense, Criteo
Social
highFacebook SDK, Twitter Widget, LinkedIn Insight
Fingerprinting
criticalFingerprintJS, Canvas fingerprint scripts
Malware
criticalCrypto miners, known malicious scripts
How It Works
Bait Resources
We attempt to load scripts with names and paths that match real tracking scripts. These are served from our domain.
Detection
We measure which resources load successfully and which are blocked. This reveals what your blocker filters.
Analysis
We identify your blocker if possible and provide category-by-category protection scores.
Note
This test uses "bait" resources that mimic real trackers. No actual tracking occurs. The resources are served from our own domain for testing purposes only.