Hello! I recently tried NextDNS and noticed that is detects my current DNS resolved on the go. I just opened its website and it immediately showed my current resolver:  When I tried changing private DNS to Cloudflatein settings it instantly showed my new resolver. But how exactly it works? Does the browser send used DNS server to website? Or it is done somehow via JavaScript? And also: So every website can know what I am using now? Can it be used for fingerprinting?

Last two weeks every time I use Piped I am getting error "Sign in to confirm you are not a bot". It happens on every instance and videos work very rarely. It seems like Google enforces you to log in if you try watch lot of videos from one IP. I hope this will not be end of Piped and there will be solution for this problem. Upd. I got similar problem on Invidious recently