Has both IPv4 (A) and IPv6 (AAAA) addresses.
| Website over IPv6 auth-zone.cfd has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3034::ac43:a06a answers · 443✓ 2606:4700:3032::6815:314f answers · 443 | yes |
| Mail servers (MX) have IPv6 No MX records, so mail goes to the domain's own address (implicit MX). It has an AAAA record. | yes |
| Nameservers have IPv6 2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. kiki.ns.cloudflare.com ✓quinton.ns.cloudflare.com ✓ | yes |
| HTTPS over IPv6 · not part of the grade yet Loads over IPv6 with a valid certificate after 1 redirect: HTTP 200. https://auth-zone.cfd/ via 2606:4700:3034::ac43:a06a → 302https://www.google.com/ via 2001:4860:4826:7700:: → 200 | works |
auth-zone.cfd Has IPv6
| A (IPv4) | 172.67.160.106 104.21.49.79 |
|---|---|
| AAAA (IPv6) | 2606:4700:3034::ac43:a06a 2606:4700:3032::6815:314f |
Browsers on dual-stack networks will usually pick IPv6 here (the "Happy Eyeballs" algorithm races both and prefers v6).
Permanent link: aaaa.bot/r/AP1w8MmWtT · How we measure
Checked 2026-11-11 15:46:01 UTC. Full DNS report: dns.pizza/domain/auth-zone.cfd · Age, certificate and blocklists: how.is/auth-zone.cfd · JSON: /api/v1/auth-zone.cfd