What is an AAAA record lookup?

It queries DNS for type AAAA and returns the IPv6 addresses published for a hostname.

What is a DNS AAAA record?

An AAAA record maps a DNS name to one or more IPv6 addresses, using 128-bit notation such as 2001:db8::1.

IPv6-only clients and networks resolve AAAA records first. Missing or wrong AAAA answers can make your site unreachable on modern networks.

Yes. Dual-stack publishing is common. Use both A and AAAA lookups to verify IPv4 and IPv6 targets.

The hostname may be IPv4-only, use a CNAME chain without AAAA on the target, or have no address records published.

Copy the full address from the Value column. Many systems accept compressed notation as returned by DNS.

Yes. TTL is still measured in seconds and controls resolver cache lifetime for AAAA answers.

Inbound mail primarily uses MX hostnames, which may have their own A/AAAA records. Web traffic benefits most directly from AAAA.

Some operators use different infrastructure for IPv6, or enable IPv6 only on certain edges. Always verify both families.

This page returns only AAAA records for a focused IPv6 audit without other record types.

Yes. Proxied zones often publish CDN edge IPv6 pools similar to IPv4 A records.

Publishing correct, reachable AAAA records alongside working routing and firewalls so IPv6 clients can connect successfully.

Yes. IP Checker Online offers this lookup at no cost with no signup.

DNS correctness is step one. Follow with ping, HTTP checks, or IPv6 Test tools to confirm end-to-end reachability.

Before enabling IPv6 on production, after DNS edits, during firewall changes, and when debugging IPv6-only user reports.

DNS Tools

Resolve IPv6 addresses (AAAA records) for any hostname.