[ricardo81]

What's that all about then? I'd expect curl to deal with either/or

curl should especially live with a punycode version.

Unless the punycode from the OP is incorrect? From basic online tools, it looks like it simply converts to x.com

[jrockway]

I get:

  $ curl http://𝕏.com -v
  *   Trying 34.102.136.180:80...
  * Connected to 𝕏.com (34.102.136.180) port 80 (#0)
  > GET / HTTP/1.1
  > Host: x.com
  > User-Agent: curl/8.1.2
  > Accept: */*
  >
  < HTTP/1.1 200 OK

No https, though. (OpenSSL SSL_connect: Connection reset by peer in connection to x.com:443)