It can be anything! An apex, subdomain, or even a URL.
Domain Name: ikuohiraishi.pwa.chatcenter.aiDomain Status: No Object Found>>> Last update of WHOIS database: 2024-09-21T09:29:11.885Z <<<
Domain Name: ikuohiraishi.pwa.chatcenter.ai
Domain Status: No Object Found
>>> Last update of WHOIS database: 2024-09-21T09:29:11.885Z <<<