It can be anything! An apex, subdomain, or even a URL.
Domain Name: bookings.heydo.aiDomain Status: No Object Found>>> Last update of WHOIS database: 2024-09-24T20:32:04.952Z <<<
Domain Name: bookings.heydo.ai
Domain Status: No Object Found
>>> Last update of WHOIS database: 2024-09-24T20:32:04.952Z <<<