[gorhill]

Those webpages used to "test" blockers are frowned upon, see: https://x.com/gorhill/status/1583581072197312512

There are many reasons that sort of online tools are not able to reliably test a content blocker:

- Many content blockers are designed to fool pages to think no content blocker is installed

- Content blockers filter according to real, actual cases, not synthetic cases used in their tests

[eikenberry]

I just tested with Firefox and uBlock Origin in the stricter "medium mode" and got a score of 1%. So yeah, I don't think these test pages are that great.

[saagarjha]

Would you be supportive of an "adblock test page" that literally just reports if the adblocker is working correctly, rather than how good it is? Like maybe an EICAR-like rule that is added to EasyList that matches an element on that page?

[eipi10_hn]

There is. If you are using uBO Lite, enable the "uBlock test filters" list, wait a bit and click on the home page button at the right. It will lead to https://ublockorigin.github.io/uBOL-home/tests/test-filters....