It can be anything! An apex, subdomain, or even a URL.
Domain Name: backend-test.toni.aiDomain Status: No Object Found>>> Last update of WHOIS database: 2024-09-21T09:30:00.201Z <<<
Domain Name: backend-test.toni.ai
Domain Status: No Object Found
>>> Last update of WHOIS database: 2024-09-21T09:30:00.201Z <<<