While theoretically many non-cloudflare sites can be affected, I'm compiling a list of known cloudflare-using domains here: https://github.com/pirate/sites-usin

While theoretically many non-cloudflare sites can be affected, I'm compiling a list of known cloudflare-using domains here: https://github.com/pirate/sites-using-cloudflare https://github.com/pirate/sites-using-cloudflare It can serve as a starting point, just Ctrl+F for domains you use.