resolver

A DNS server (glossary)name server A server that holds a domain's DNS records and answers lookups. Full definition of name server, often run by an internet provider or a public DNS (glossary)public DNS resolver A DNS resolver open for anyone on the internet to use. Full definition of public DNS resolver service, that finds the answer to a domain name (glossary)domain name A readable internet name made of labels separated by dots. Full definition of domain name lookup for users. It asks the root, TLD (glossary)TLD top-level domain The last part of a domain name, after the final dot. Full definition of TLD and authoritative servers (glossary)authoritative server A DNS server that gives the official answers for a domain or zone. Full definition of authoritative server in turn, then saves answers for a time set by the TTL (glossary)TTL Time to Live How long resolvers may keep a saved copy of a DNS record. Full definition of TTL.