It can be anything! An apex, subdomain, or even a URL.
Domain Name: www.karrierehero.circle.soDomain Status: No Object Found>>> Last update of WHOIS database: 2024-09-25T06:21:09.473Z <<<
Domain Name: www.karrierehero.circle.so
Domain Status: No Object Found
>>> Last update of WHOIS database: 2024-09-25T06:21:09.473Z <<<