Start of Authority

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

Other types of records simply provide some types of information (for example, an HINFO record gives a description of the type of computer/OS a host uses), or others return data used in experimental features. 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".

MF

MAILA

4

254

MG

MR

MINFO

MAILB

8

9

14

253

NBSTAT

33

KEY

SIG

25

24

Obsoleted by DNSSEC updates (RFC 3755): NXT(30). At the same time, the domain of applicability for KEY and SIG was also limited to not include DNSSEC use.

RT

NSAP

21

22

PX

EID

26

31

ATMA

APL

34

42

UID

GID

UNSPEC

101

102

103

...
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