DNS Record Types

Address Record

Maps a hostname to a 32-bit IPv4 address. The most fundamental DNS record.…

IPv6 Address Record

Maps a hostname to a 128-bit IPv6 address. The IPv6 equivalent of the A record.…

Canonical Name Record

Creates an alias from one domain name to another. The target must be an A/AAAA record (not…

Mail Exchange Record

Specifies the mail server responsible for accepting email for a domain. Includes a priorit…

Text Record

Stores arbitrary text. Widely used for domain ownership verification, SPF, DKIM, and DMARC…

Name Server Record

Delegates a DNS zone to a set of authoritative name servers. Every domain must have at lea…

Start of Authority

Contains administrative info about a DNS zone: primary nameserver, admin email, serial, re…

Pointer Record

Maps an IP address back to a hostname (reverse DNS / rDNS). Lives in the in-addr.arpa or i…

Service Record

Specifies the location (hostname and port) of servers for specific services. Format: prior…

Certificate Authority Authorization

Specifies which Certificate Authorities (CAs) are allowed to issue SSL/TLS certificates fo…

DomainKeys Identified Mail

Stored as a TXT record at a selector subdomain. Contains the public key used to verify cry…

Domain-based Message Authentication

TXT record at _dmarc subdomain. Tells receiving mail servers what to do with emails that f…

Sender Policy Framework

Stored as a TXT record. Lists the authorized mail servers for a domain. Prevents spammers …

Alias / ANAME Record

Non-standard record (Cloudflare CNAME Flattening, Route 53 Alias). Maps apex domain to a h…