Yes — apache.org has IPv6.

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

This is a saved measurement from 2026-10-30 17:04 UTC. Check apache.org live now

B
IPv6 readiness
Works over IPv6, with one gap: its mail servers lack IPv6.
Website over IPv6
apache.org has an AAAA record and answers on it.
✓ 2a04:4e42::644 answers · 443
yes
www over IPv6
www.apache.org has an AAAA record and answers on it.
✓ 2a04:4e42::644 answers · 443
yes
Mail servers (MX) have IPv6
At least one mail server has no AAAA record (1 of 6 checked do).
mx1-ec2-va.apache.org ✗mx1-he-de.apache.org ✓mx2-ec2-de.apache.org ✗mx2-ec2-ie.apache.org ✗mx2-ec2-or.apache.org ✗mx2-ec2-sy.apache.org ✗
partly
Nameservers have IPv6
4 of 4 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.
ns-1139.awsdns-14.org ✓ns-1955.awsdns-52.co.uk ✓ns-303.awsdns-37.com ✓ns-558.awsdns-05.net ✓
yes
HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate: HTTP 200.
https://apache.org/ via 2a04:4e42::644 → 200
works

What's keeping apache.org from an A

  1. Mail servers without IPv6
    mx1-ec2-va.apache.org, mx2-ec2-de.apache.org, mx2-ec2-ie.apache.org, mx2-ec2-or.apache.org, mx2-ec2-sy.apache.org have no AAAA record, so mail from IPv6-only servers can't reach them directly. If a provider runs your mail, that's their setting; if you run it, add AAAA records for these hosts.

Check again

apache.org  Has IPv6

A (IPv4)151.101.2.132
AAAA (IPv6)2a04:4e42::644

www.apache.org  Has IPv6

A (IPv4)151.101.2.132
AAAA (IPv6)2a04:4e42::644

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/WB0GEkEuId · How we measure

Checked 2026-10-30 17:04:32 UTC. Full DNS report: dns.pizza/domain/apache.org · JSON: /api/v1/apache.org