hot-f118-zvc-te-vnso-cm-12.mdchat.me appears to be a subdomain of mdchat.me, a chat platform. But unlike most chat services you'd actually use, this one doesn't load at all. It's returning a 404 error, which means the site isn't live or has been taken down.
Legitimate chat sites like Discord or Telegram have clear branding, company information, and support channels. This subdomain has none of that. There's no about page, no contact info, and even the favicon is missing. The domain is very new and hasn't been archived by the Wayback Machine, so we can't see what it looked like before.
If you came across this link expecting a chat room, don't use it. The site can't be accessed, and even if it could, the lack of basic transparency makes it risky. Our hot-f118-zvc-te-vnso-cm-12.mdchat.me review suggests avoiding it entirely. There's no evidence it's a legitimate service.