1
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A
|
Address specifies a host’s IPv4 address.
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2
|
NS
|
Nameserver clarifies the zone’s authority.
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3
|
MD
|
Mail Destination was replaced by the MX record (obsolete).
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4
|
MF
|
Mail Forwarder was replaced by the MX record (obsolete).
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5
|
CNAME
|
Canonical Name defines an alias.
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6
|
SOA
|
Start of Authority discloses details about the zone.
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7
|
MB
|
Mailbox Domain Name is experimental.
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8
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MG
|
Mail Group Member is experimental.
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9
|
MR
|
Mail Rename Domain Name is experimental.
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10
|
NULL
|
Null Resource is experimental.
|
11
|
WKS
|
Well Known Service was used for mail forwarding (now obsolete).
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12
|
PTR
|
Pointer is intended for reverse lookup.
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13
|
HINFO
|
Host Information supplies the host’s hardware and software details.
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14
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MINFO
|
Mailbox Information is experimental.
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15
|
MX
|
Mail Exchange assigns email servers a domain.
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16
|
TXT
|
Text provides the option of entering additional texts.
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17
|
RP
|
Responsible Person provides information on the responsible person.
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18
|
AFSDB
|
AFS Database is specifically intended for AFS clients.
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19
|
X25
|
X.25 PSDN Address provides details on encapsulation via X.25 (obsolete).
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20
|
ISDN
|
This record assigns the DNS name an ISDN number (obsolete).
|
21
|
RT
|
Route Through Record provides route-through binding without a WAN address (obsolete).
|
22
|
NSAP
|
This record enables assignment of domain names to Network Service Access Points (obsolete).
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23
|
NSAP-PTR
|
NSAP Pointer was replaced by PTR (obsolete).
|
24
|
SIG
|
Signature was replaced by RRSIG (obsolete).
|
25
|
KEY
|
Key was replaced by IPSECKEY (obsolete).
|
26
|
PX
|
Pointer to X.400 specifies MIXER mapping regulations (obsolete).
|
27
|
GPOS
|
Geographical Position was replaced by LOC (obsolete).
|
28
|
AAAA
|
AAAA provides a host’s IPv6 address.
|
29
|
LOC
|
Location contains location information.
|
30
|
NXT
|
Next was replaced by NSEC (obsolete).
|
31
|
EID
|
Endpoint Identifier is intended for Nimrod Routing Architecture (obsolete).
|
32
|
NIMLOC
|
Nimrod Locator is intended for Nimrod Routing Architecture (obsolete).
|
33
|
SRV
|
Service Locator provides information about other services.
|
34
|
ATMA
|
ATM Address provides information when there are asynchronous transfer modes (obsolete).
|
35
|
NAPTR
|
Naming Authority Pointer is an A record extension that permits the search pattern (regular expressions).
|
36
|
KX
|
Key Exchanger enables key management for cryptography.
|
37
|
CERT
|
Cert saves certificates.
|
38
|
A6
|
A6 was replaced by AAAA.
|
39
|
DNAME
|
Delegation Name specifies the aliases for complete domains.
|
40
|
SINK
|
Kitchen Sink enables the storage of various data (obsolete).
|
41
|
OPT
|
Option is a pseudo-record when there is a DNS extension mechanism (EDNS).
|
42
|
APL
|
Address Prefix List lists address areas in CIDR format.
|
43
|
DS
|
Delegation Signer identifies DNSSEC-signed zones.
|
44
|
SSHFP
|
SSH Public Key Fingerprint discloses the fingerprint for SSH keys.
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45
|
IPSECKEY
|
IPsec Key contains an IPsec key.
|
46
|
RRSIG
|
RR Signature contains a digital signature for DNSSEC.
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47
|
NSEC
|
Next Secure threads signed zones in DNSSEC.
|
48
|
DNSKEY
|
DNS Key contains a public key for DNSSEC.
|
49
|
DHCID
|
DHCP Identifier links domain names with DHCP clients.
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50
|
NSEC3
|
Next Secure 3 is an alternative to NSEC.
|
51
|
NSEC3PARAM
|
This record contains Parameter for NSEC3.
|
52
|
TLSA
|
This record issues an TLSA Certificate Association with a domain name pertaining to DANE.
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53
|
SMIMEA
|
This record issues a S/MIME Certificate Association with a domain name.
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54
|
n/a
|
Unassigned
|
55
|
HIP
|
Host Identity Protocol separates endpoint markers and positioning functions from IP addresses.
|
56
|
NINFO
|
NINFO provides information on the zone’s status (same structure as TXT; obsolete).
|
57
|
RKEY
|
RKEY saves keys (same structure as KEY and DNSKEY; obsolete).
|
58
|
TALINK
|
Trust Anchor Link connects two domain names (obsolete).
|
59
|
CDS
|
Child DS is a child copy of a DS record.
|
60
|
CDNSKEY
|
Child DNSKEY is a child copy of a DNSKEY record.
|
61
|
OPENPGPKEY
|
OpenPGP Key discloses public keys.
|
62
|
CSYNC
|
Child-to-Parent Synchronization enables the reconciliation of parent and child zones (obsolete).
|
63
|
ZONEMD
|
Message Digest for DNS Zone is experimental (obsolete).
|
64–98
|
n/a
|
Not assigned.
|
99
|
SPF
|
Sender Policy Framework was replaced by the TXT record (obsolete).
|
100
|
UINFO
|
Reserved.
|
101
|
UID
|
Reserved.
|
102
|
GID
|
Reserved.
|
103
|
UNSPEC
|
Reserved.
|
104
|
NID
|
NodeID is experimental.
|
105
|
L32
|
32-bit Locator is experimental.
|
106
|
L64
|
64-bit Locator is experimental.
|
107
|
LP
|
Locator Pointer is experimental.
|
108
|
EUI48
|
48-bit Extended Unique Identifier encrypts addresses.
|
109
|
EUI64
|
64-bit Extended Unique Identifier encrypts addresses.
|
110–248
|
n/a
|
Unassigned.
|
249
|
TKEY
|
Transaction Key enables the exchange of secret keys.
|
250
|
TSIG
|
Transaction Signature is used for authentication.
|
251
|
IXFR
|
Incremental Zone Transfer enables zone file components to be updated on a second server (obsolete).
|
252
|
AXFR
|
AFXR transfers a complete zone file to a second server (obsolete).
|
253
|
MAILB
|
Mailbox queries records related to a mailbox (obsolete).
|
254
|
MAILA
|
Mail Agent was replaced by MX-Record (obsolete).
|
255
|
*
|
* requests all records (obsolete).
|
256
|
URI
|
Uniform Resource Identifier discloses the mapping of host names to URIs.
|
257
|
CAA
|
Certificate Authority Authorization specifies a domain’s possible CAs.
|
258
|
AVC
|
Application Visibility and Control contains application metadata for DNS-AS (obsolete).
|
259
|
DOA
|
DOA is no longer active (obsolete).
|
260
|
AMTRELAY
|
Automatic Multicast Tunneling Relay enables the finding of AMT relays (obsolete).
|
261–32767
|
n/a
|
Unassigned.
|
32768
|
TA
|
DNSSEC Trust Authorities enables DNSSEC without signed root.
|
32769
|
DLV
|
DNSSEC Lookaside Validation discloses trust anchors beyond the standard DNS chain.
|
32770–65279
|
n/a
|
Unassigned.
|
65280–65534
|
n/a
|
For private use.
|
65535
|
n/a
|
Reserved.
|