It can be anything! An apex, subdomain, or even a URL.
Domain Name: dl.zin.aiDomain Status: No Object Found>>> Last update of WHOIS database: 2024-09-20T17:32:09.664Z <<<
Domain Name: dl.zin.ai
Domain Status: No Object Found
>>> Last update of WHOIS database: 2024-09-20T17:32:09.664Z <<<