Think maybe mutiny might be doing it too? I just guessed the url. Could be wrong.
Oh it is free relay, using blastr code to broadcast events to many online relays
https://github.com/MutinyWallet/
Ah i forgot this one using clkudflare workers, not sure if also blocked ip like regular cloudflare services. Well, only need to switch into another IP
Discussion
Ah, yes, it will gives error like this if we access using web browser or regular https request using curl. Because, it will only accept websocket connection.
Using websocat, i can see it will connected normally. Amethyst will also shows the error using "loop feedback" icon if there are connection issue.
websocat wss://nostr.mutinywallet.com -v
