Some helpful sites to test your adblocker:
- https://canyoublockit.com/- https://blockads.fivefilters.org/- https://ads-blocker.com/testing/
Found another good adblock test site:
Add to the list this open-source adblock test site:
Tests against this list of domains: https://github.com/d3ward/toolz/blob/master/src/d3host.txt
Personal instance of nitrohorse (nitrohorse.com).