You could have made one in 1995, but looking over https://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml https://www.iana.org/assignments/prot

You could have made one in 1995, but looking over https://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml https://www.iana.org/assignments/protocol-numbers/protocol-n... I think HTTP/1.1 was the first protocol to send the host name like this. (Though I could be missing something, since that's a lot of protocols.)