It can be anything! An apex, subdomain, or even a URL.
Domain Name: api.prosus.aiDomain Status: No Object Found>>> Last update of WHOIS database: 2024-09-20T21:43:57.104Z <<<
Domain Name: api.prosus.ai
Domain Status: No Object Found
>>> Last update of WHOIS database: 2024-09-20T21:43:57.104Z <<<