DNS Record Types

I got several times the question what DNS record type is used for what and so I made a table.

TypeUsed forExample
Amaps a domain name to an IPv4 addressiseet.fans → 87.118.116.40
AAAAmaps a domain name to an IPv6 addressGoogle DNS → 2001:4860:4860::8888
CNAMEmaps an alias name to a canonical domain namewww.iseet.fans → iseet.fans
MXspecifies mail exchange servers for a domainmx.iseet.fans
NSindicates DNS servers for a domainiseet.fans NS ns1.iseet.fans
PTRshows reverse DNS lookup info for an IP address87.118.116.40 → iseet.fans
TXTallows admins to add any text info for verificationSPF entry example → v=spf1 +a +mx -all
SRVspecifies info about available services in a domainSIP server host/port info
SOAstores essential domain infoprimary domain server
admin email
domain serial
CAAspecifies which certificate authorities are allowed to issue certificates for domain