I can remember that some years ago several providers advertised the possibility to use the @ syntax instead of general subdomains with their DNS service. Today, I can't find any documentation or hints about this anymore, besides Google Chrome asking me whether I wanted to open http://test@domain.tld when entering the possible email address (without the protocol) in the search bar. What happened to this domain syntax?
What happened to the test@domain.tld syntax?
domains;dns;domain registrar
@ has a special meaning, when used in a URL. Here's a URL with everything possible in it:scheme://username:password@domain:port/path?query_string#fragment_idThe @ separates the password from the domain. So I think you're remembering something else.