It can be anything! An apex, subdomain, or even a URL.
Domain Name: spo-edog-ms-aad.mediad.svc.msDomain Status: No Object Found>>> Last update of WHOIS database: 2024-09-21T00:34:03.477Z <<<
Domain Name: spo-edog-ms-aad.mediad.svc.ms
Domain Status: No Object Found
>>> Last update of WHOIS database: 2024-09-21T00:34:03.477Z <<<