Nice tool! It’s weird that Firefox even with resistFingerprinting enabled shows as nearly unique while Brave passes the test as randomized.
This is the successor of the EFF’s Panopticlick. The related launch blog post is at https://www.eff.org/deeplinks/2020/11/introducing-cover-your-tracks
It’s so sad that this tool is necessary.
I’m disappointed that Vivaldi with EFF’s Privacy Badger extension active does not fare better on this test by default.