http://coveryourtracks.iykpqm7jiradoeezzkhj7c4b33g4hbgfwelht2evxxeicbpjy44c7ead.onion/about
action=tracking_tally&random=123456 Each of these URLs attempts to set cookies, and is loaded from three first party domains in order to trigger heuristic blocking. The first URL simulates tracking by a visible ad (if the ad is blocked, the test passes); the second simulates a non-visible tracking beacon (if the beacon is blocked, the test passes); and the third interaction with a domain that has implemented the Do Not Track Policy (if the domain’s scripts are unblocked, the test passes).