AAAA Record Lookup Tool

Check AAAA records instantly across multiple public DNS resolvers to validate IPv6 routing.

How to troubleshoot IPv6 routing with an AAAA Lookup

As the internet transitions to dual-stack networking, verifying your IPv6 configuration is crucial. Enter your domain name above to instantly query its AAAA record. Our tool checks multiple public DNS resolvers globally to help you confirm IPv6 connectivity and spot propagation delays.

Interpreting your lookup results

  • NXDOMAIN vs No Answer: If you see NXDOMAIN, the domain itself doesn't exist. If the domain exists but returns no AAAA record, it simply means IPv6 is not configured. Modern browsers will seamlessly fall back to the A record (IPv4).
  • Inconsistent IPv6 Addresses: If Google DNS shows your new IPv6 address but Cloudflare still shows the old one, you are actively experiencing DNS propagation. Wait for your TTL to expire.
  • CDN and Firewall IPs: If you are using a reverse proxy or CDN like Cloudflare, the AAAA lookup will return their IPv6 edge servers. Ensure your origin server is also properly configured to accept IPv6 connections from the CDN.
  • Broken IPv6 Routing: If an AAAA record is present but the server is unreachable via IPv6, users might experience slow load times (until "Happy Eyeballs" fallback kicks in). Always ensure your firewall rules allow IPv6 traffic.

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Check A record online Check CNAME record online Check NS record online Check DNS propagation check online