Yes — mozilla.org has IPv6.

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

This is a saved measurement from 2026-10-30 15:56 UTC. Check mozilla.org live now

A
IPv6 readiness
Website, mail and DNS all work over IPv6.
Website over IPv6
mozilla.org has an AAAA record and answers on it.
✓ 2600:1901:0:c197:: answers · 443
yes
www over IPv6
www.mozilla.org has 4 IPv6 addresses and answers on every one we tested.
✓ 2a04:4e42::787 answers · 443✓ 2a04:4e42:200::787 answers · 443✓ 2a04:4e42:400::787 answers · 443✓ 2a04:4e42:600::787 answers · 443
yes
Mail servers (MX) have IPv6
Every mail server has an AAAA record.
alt2.aspmx.l.google.com ✓alt1.aspmx.l.google.com ✓aspmx3.googlemail.com ✓aspmx.l.google.com ✓
yes
Nameservers have IPv6
1 of 4 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.
ns5-65.akam.net ✗ns4-64.akam.net ✗ns1-240.akam.net ✓ns7-66.akam.net ✗
yes

Nothing keeping you from an A

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

Check again

mozilla.org  Has IPv6

A (IPv4)35.190.14.201
AAAA (IPv6)2600:1901:0:c197::

www.mozilla.org  Has IPv6

Alias ofwww-mozilla.fastly-edge.com
A (IPv4)151.101.131.19
151.101.195.19
151.101.3.19
151.101.67.19
AAAA (IPv6)2a04:4e42::787
2a04:4e42:200::787
2a04:4e42:400::787
2a04:4e42:600::787

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/u1zy-jvUhZ · How we measure

Checked 2026-10-30 15:56:39 UTC. Full DNS report: dns.pizza/domain/mozilla.org · JSON: /api/v1/mozilla.org