Cosmetic filters
Static and dynamic ad-shaped boxes show whether your blocker hides empty ad spaces.
Results
Live scan details.
No matching checks.
Scripts and pixels
Local baits and third-party probes check ad scripts, analytics, social pixels, and error monitors.
Host signals
DNS-style reachability checks help spot common ad and tracking hosts that still answer.
Cosmetic bait zone
Harmless traps used by the scan.
If these boxes disappear, cosmetic filtering is doing its job.
Ad banner
Sponsored
Native ad
Static ad
Plain answers
How to read the score.
Why can a test say “open” even when my blocker works?
Some domains allow simple image or fetch probes while still blocking real ad behavior. Treat the score as a practical snapshot, then inspect the detailed rows.
Does this page upload my results?
No. The checks run locally and results are rendered in your browser. This site does not include third-party analytics.
Can this prove DNS blocking?
No browser page can universally inspect your DNS resolver. We test whether known ad and tracking endpoints fail from the page, which is a useful but imperfect signal.
Why do DNS apps and browser extensions sometimes score differently?
They block at different layers. DNS tools can stop whole hosts, while extensions can hide page elements and block script paths. Running several blockers together can also create false positives.