List of DNS record types

This list of DNS record types is an overview of resource records (RRs) permissible in zone files of the Domain Name System (DNS).

The "type" field is also used in the protocol for various operations.

Progress has rendered some of the originally defined record-types obsolete.

Of the records listed at IANA, some have limited use, for various reasons.

Some are marked obsolete in the list, some are for very obscure services, some are for older versions of services, and some have special notes saying they are "not right".