It can be anything! An apex, subdomain, or even a URL.
Domain Name: www.fline.aiDomain Status: No Object Found>>> Last update of WHOIS database: 2024-09-20T20:29:48.113Z <<<
Domain Name: www.fline.ai
Domain Status: No Object Found
>>> Last update of WHOIS database: 2024-09-20T20:29:48.113Z <<<