Any subdomain seems to be enough. For instance I have two bitwarden logins: 1) support.server.com 2) server.com Both are always available, no matter it's for w

Any subdomain seems to be enough. For instance I have two bitwarden logins: 1) support.server.com 2) server.com Both are always available, no matter it's for www.server.com or mail.server.com