DNS Basics2026-04-037 min read

What is an AAAA record?

Learn what an AAAA record is, how it maps hostnames to IPv6 addresses, and how it differs from A records.

What an AAAA record is

An AAAA record maps a hostname to an IPv6 address, similar to how an A record maps to IPv4.

You can check AAAA records using DNS Pro: https://app.dnspro.co.uk/dns-lookup

Example

example.com. 300 IN AAAA 2001:db8::1

IPv4 vs IPv6

  • A records → IPv4
  • AAAA records → IPv6
  • Modern systems often support both

Why AAAA records matter

IPv6 adoption continues to grow, and AAAA records ensure compatibility with modern networks.

Related concepts

See also: /articles/why-does-one-hostname-resolve-to-multiple-ips

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