It can be anything! An apex, subdomain, or even a URL.
Domain Name: www.microsoft.yourdomain.soDomain Status: No Object Found>>> Last update of WHOIS database: 2024-09-21T14:59:13.160Z <<<
Domain Name: www.microsoft.yourdomain.so
Domain Status: No Object Found
>>> Last update of WHOIS database: 2024-09-21T14:59:13.160Z <<<