It can be anything! An apex, subdomain, or even a URL.
Domain Name: www.sold-ns2.whois.aiDomain Status: No Object Found>>> Last update of WHOIS database: 2024-09-22T02:05:12.634Z <<<
Domain Name: www.sold-ns2.whois.ai
Domain Status: No Object Found
>>> Last update of WHOIS database: 2024-09-22T02:05:12.634Z <<<