4 ms·

They will accept IPv4 addresses in IPv6 addresses too: http://[::ffff:1.1.1.1]/ http://[::ffff:1.1.1.1]/ Sadly, cloudflare does not.

• efitz 1y ago
  That is a syntactically and semantically valid IPv6 address; no browser trickery.
  • immibis 1y ago
    OS trickery, though, because it doesn't send IPv6 packets to that IPv6 address, but rather sends IPv4 packets to the corresponding IPv4 address.