09-03-2023, 11:05 PM
Every DNS record has a type. This type defines what the content of the record means. For example, a DNS record of type MX contains the location of a mail exchange server. So when you want to know the mail server of some email address, you can perform a DNS lookup that queries the MX records.
An illustration of stars in a galaxy, representing the different DNS record types.
A galaxy full off DNS records. By NsLookup.io. Licensed under CC By 4.0.
All the record types are strictly defined in so-called RFCs (request for comments). Since the beginning of the domain name system, a lot of new record types have been added. Some record types have also been declared obsolete, because they have been replaced by a newer record type.
There are many different types of DNS record in existence. Most of them are used only occasionally. Only a couple record types are used very frequently.
An overview of the DNS record types
All DNS record types. By NsLookup.io
Some of the most commonly used DNS record types are:
A — IPv4 address
AAAA — IPv6 address
CNAME — Canonical name
MX — Mail exchange
NS — Name server
TXT — Human-readable text
SOA — Start of authority
These are all the DNS record types that are currently in use:
A — IPv4 address
AAAA — IPv6 address
AFSDB — AFS database location
APL — Address prefix list
AXFR — Authoritative zone transfer
CAA — Certification authority authorization
CDNSKEY — Child copy of a DNSKEY
CDS — Child copy of DS
CERT — Cryptographic certificate
CNAME — Canonical name
CSYNC — Child-to-parent synchronization
DHCID — DHCP identifier
DLV — DNSSEC lookaside validation
DNAME — Delegation name
DNSKEY — Cryptographic key for DNSSEC
DS — Delegation signer
EUI48 — MAC address (EUI-48)
EUI64 — Mac address (EUI-64)
HINFO — Host information
HIP — Host identification protocol
HTTPS — HTTPS binding
IPSECKEY — Cryptographic key for IPsec
IXFR — Incremental zone transfer
KEY — Cryptographic key for DNSSEC (obsoleted by DNSKEY)
KX — Key exchange
LOC — Geographical location
MX — Mail exchange
NAPTR — Naming authority pointer
NS — Name server
NSEC3 — Next secure (version 3)
NSEC3PARAM — Parameter for NSEC3
NSEC — Next secure (obsoleted by NSEC3)
NXT — DNSSEC key (obsoleted by NSEC)
OPENPGPKEY — Public key for OpenPGP
OPT — EDNS option
PTR — Canonical name pointer
RP — Responsible person
RRSIG — Resource record signature for DNSSEC
SIG — Resource record signature for DNSSEC (obsoleted by RRSIG)
SMIMEA — S/MIME association
SOA — Start of authority
SSHFP — Public key fingerprint for SSH
SVCB — Service binding
SRV — Service locator
TA — Trust authority for DNSSEC
TKEY — Transaction key
TLSA — Certificate association for TLS
TSIG — Transaction signature
TXT — Human-readable text
URI — Uniform resource identifier
ZONEMD — Message digest for DNS zones
An illustration of stars in a galaxy, representing the different DNS record types.
A galaxy full off DNS records. By NsLookup.io. Licensed under CC By 4.0.
All the record types are strictly defined in so-called RFCs (request for comments). Since the beginning of the domain name system, a lot of new record types have been added. Some record types have also been declared obsolete, because they have been replaced by a newer record type.
There are many different types of DNS record in existence. Most of them are used only occasionally. Only a couple record types are used very frequently.
An overview of the DNS record types
All DNS record types. By NsLookup.io
Some of the most commonly used DNS record types are:
A — IPv4 address
AAAA — IPv6 address
CNAME — Canonical name
MX — Mail exchange
NS — Name server
TXT — Human-readable text
SOA — Start of authority
These are all the DNS record types that are currently in use:
A — IPv4 address
AAAA — IPv6 address
AFSDB — AFS database location
APL — Address prefix list
AXFR — Authoritative zone transfer
CAA — Certification authority authorization
CDNSKEY — Child copy of a DNSKEY
CDS — Child copy of DS
CERT — Cryptographic certificate
CNAME — Canonical name
CSYNC — Child-to-parent synchronization
DHCID — DHCP identifier
DLV — DNSSEC lookaside validation
DNAME — Delegation name
DNSKEY — Cryptographic key for DNSSEC
DS — Delegation signer
EUI48 — MAC address (EUI-48)
EUI64 — Mac address (EUI-64)
HINFO — Host information
HIP — Host identification protocol
HTTPS — HTTPS binding
IPSECKEY — Cryptographic key for IPsec
IXFR — Incremental zone transfer
KEY — Cryptographic key for DNSSEC (obsoleted by DNSKEY)
KX — Key exchange
LOC — Geographical location
MX — Mail exchange
NAPTR — Naming authority pointer
NS — Name server
NSEC3 — Next secure (version 3)
NSEC3PARAM — Parameter for NSEC3
NSEC — Next secure (obsoleted by NSEC3)
NXT — DNSSEC key (obsoleted by NSEC)
OPENPGPKEY — Public key for OpenPGP
OPT — EDNS option
PTR — Canonical name pointer
RP — Responsible person
RRSIG — Resource record signature for DNSSEC
SIG — Resource record signature for DNSSEC (obsoleted by RRSIG)
SMIMEA — S/MIME association
SOA — Start of authority
SSHFP — Public key fingerprint for SSH
SVCB — Service binding
SRV — Service locator
TA — Trust authority for DNSSEC
TKEY — Transaction key
TLSA — Certificate association for TLS
TSIG — Transaction signature
TXT — Human-readable text
URI — Uniform resource identifier
ZONEMD — Message digest for DNS zones