It can be anything! An apex, subdomain, or even a URL.
Domain Name: www.hls.circle.soDomain Status: No Object Found>>> Last update of WHOIS database: 2024-09-22T09:35:59.490Z <<<
Domain Name: www.hls.circle.so
Domain Status: No Object Found
>>> Last update of WHOIS database: 2024-09-22T09:35:59.490Z <<<