Comment by lambda

No, it's down again: https://xcancel.com/

They did come back for a while after the original cease and desist, but they've shut off again "due to a new development in the ongoing legal proceedings" a few days ago.

Oh, sorry, you said https://xxcancel.com/ with an extra "x".

Looks like that's a Nitter instance redirector that redirects to a few still up Nitter instances. Good to know.