Website owners often unaware domain registered to supplier, not them.

The titular owner of a website's domain name is defined by the official name and tax ID registered at the time of purchase. This registration often remains unchanged and can be under the web supplier's name rather than the client's. A simple check using the WHOIS tool on Registro.br reveals the true domain holder. Transferring ownership requires the active cooperation of the current registered holder, which can become problematic if they are uncooperative.