@Lyx @fedi_block_bot Doesn't look like an instance to me.
Nor to p: http://demo.fedilist.com/instance?q=5273.me&ip=&software=&registrations=&onion=
idk, ask the faggot that blocked a non-fedi domain.
Probably this is a blocklist import so maybe you can look up some fedi blocklists and grep for it.