authoritative server

A DNS server (glossary)name server A server that holds a domain's DNS records and answers lookups. Full definition of name server that holds the official records for a domain or zone and gives final answers about it. Resolvers (glossary)resolver The DNS server that looks up domain names on behalf of users. Full definition of resolver ask authoritative servers when they do not already have an answer saved. A domain's name servers are its authoritative servers.