Yes — authid-apple.com has IPv6.

Has both IPv4 (A) and IPv6 (AAAA) addresses.

A
IPv6 readiness
Website, mail and DNS all work over IPv6.
Website over IPv6
authid-apple.com has 2 IPv6 addresses and answers on every one we tested.
✓ 2606:4700:3035::ac43:97bf answers · 443✓ 2606:4700:3032::6815:58b3 answers · 443
yes
www over IPv6
www.authid-apple.com has 2 IPv6 addresses and answers on every one we tested.
✓ 2606:4700:3032::6815:58b3 answers · 443✓ 2606:4700:3035::ac43:97bf 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.
dina.ns.cloudflare.com ✓rajeev.ns.cloudflare.com ✓
yes
HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate: HTTP 403.
https://authid-apple.com/ via 2606:4700:3035::ac43:97bf → 403
works
 Which outside scripts, fonts, payments or chat authid-apple.com loads from have no IPv6.
 Load authid-apple.com over IPv6 from up to six other places — a second opinion.

Nothing keeping you from an A

  1. Nothing to fix
    Show it off: add the badge to your README.
    [![IPv6](https://aaaa.bot/badge/authid-apple.com.svg)](https://aaaa.bot/authid-apple.com)

Check again

authid-apple.com  Has IPv6

A (IPv4)104.21.88.179
172.67.151.191
AAAA (IPv6)2606:4700:3035::ac43:97bf
2606:4700:3032::6815:58b3

www.authid-apple.com  Has IPv6

A (IPv4)172.67.151.191
104.21.88.179
AAAA (IPv6)2606:4700:3032::6815:58b3
2606:4700:3035::ac43:97bf

Browsers on dual-stack networks will usually pick IPv6 here (the "Happy Eyeballs" algorithm races both and prefers v6).

Copy the evidence — a citation-ready record of this measurement

 Permanent link: aaaa.bot/r/efO8JWJuD0 · How we measure

Checked 2026-11-13 09:46:40 UTC. Full DNS report: dns.pizza/domain/authid-apple.com · Age, certificate and blocklists: how.is/authid-apple.com · JSON: /api/v1/authid-apple.com