DNS

Your site and email vanished and the domain now points somewhere else, or sits at a registrar you never used. Confirm what changed with RDAP, lock down the email behind the registrar login, then escalate through the registrar, the transfer dispute process and ICANN.

Your designer went quiet, closed their business or will not hand over the domain or hosting. Find out what you already control, prove you are the registrant, recover accounts in your own name, and rebuild access for anything you cannot get back.