DNS Record Types Reference
Understand A, AAAA, CNAME, MX, TXT, CAA, NS, SOA, SRV, and PTR records.
| Record | Purpose | Example use |
|---|---|---|
| A | Maps a name to IPv4 | example.com → 192.0.2.10 |
| AAAA | Maps a name to IPv6 | example.com → 2001:db8::10 |
| CNAME | Aliases one name to another | www → example.com |
| MX | Mail exchanger and priority | Route email to provider servers |
| TXT | Arbitrary verification/policy text | SPF, DKIM, site verification |
| CAA | Restricts certificate authorities | Permit selected CAs to issue certificates |
| NS | Authoritative name servers | Delegates a DNS zone |
| SOA | Zone authority and timing data | Serial number and refresh values |
| SRV | Service location and port | Voice, chat, and directory services |
| PTR | Reverse address lookup | IP address → host name |
Inspect public records with the IP and Domain Lookup.