// REFERENCE
🌐 DNS record types
What each DNS record type is for, an example and its security implications.
// Basic
a
A record aaaa
AAAA record cname
CNAME record txt
TXT record ns
NS record soa
SOA record ptr
PTR record (reverse DNS)
A record aaaa
AAAA record cname
CNAME record txt
TXT record ns
NS record soa
SOA record ptr
PTR record (reverse DNS)
mx
MX record spf
SPF record (in TXT) dkim
DKIM record (in TXT) dmarc
DMARC record (in TXT) openpgpkey
OPENPGPKEY record smimea
SMIMEA record
MX record spf
SPF record (in TXT) dkim
DKIM record (in TXT) dmarc
DMARC record (in TXT) openpgpkey
OPENPGPKEY record smimea
SMIMEA record
// Security & DNSSEC
caa
CAA record dnskey
DNSKEY record ds
DS record rrsig
RRSIG record nsec
NSEC record nsec3
NSEC3 record tlsa
TLSA record (DANE) sshfp
SSHFP record cert
CERT record axfr
AXFR (zone transfer) tsig
TSIG record cds
CDS record cdnskey
CDNSKEY record zonemd
ZONEMD record ipseckey
IPSECKEY record kx
KX record
CAA record dnskey
DNSKEY record ds
DS record rrsig
RRSIG record nsec
NSEC record nsec3
NSEC3 record tlsa
TLSA record (DANE) sshfp
SSHFP record cert
CERT record axfr
AXFR (zone transfer) tsig
TSIG record cds
CDS record cdnskey
CDNSKEY record zonemd
ZONEMD record ipseckey
IPSECKEY record kx
KX record
// Services
srv
SRV record https
HTTPS record svcb
SVCB record naptr
NAPTR record uri
URI record opt
OPT record (EDNS0)
SRV record https
HTTPS record svcb
SVCB record naptr
NAPTR record uri
URI record opt
OPT record (EDNS0)
// Other
Types per the IANA DNS parameters registry and their RFCs. Educational content.