Why is there no single response from WHOIS servers?

Question

Domain Name System

Why do they return different data of the whois server
Is there any unification for searching the status of domains?

Answer 1

what single answer are you expecting?
there is a so-called thin and thick cock. thick is when all the information about the domain is given by the registry. Thin, when the registrar gives the main information, the rest is taken from the server of the registrar.
type depends on the zone. in thick, they mainly operate with some country codes like .uk or .es;
in thin, most of the rest of
com net, etc.
different huiz lookup services simply cache information, and all the differences in the answers are a cache of different freshness