DNS Record

Name services · Beginner

One published entry in the domain name system, such as an address, an alias, or a mail destination. Each record has a type and a time to live.

A name can have several entries of different types at once. The type tells a resolver whether it is getting an address, an alias, or something else.

Example: example.com can publish an address entry for the website and a mail entry for the email server at the same time.

Common misconception

Changing an entry does not instantly update every resolver. Caches keep the old answer until the time to live expires.