Yes — openssl.org has IPv6.

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

Measured 2026-11-02 05:20 UTC. We reuse a result for up to a week, so we aren't testing the same site over and over. Check openssl.org now

A
IPv6 readiness
Website, mail and DNS all work over IPv6.
Website over IPv6
openssl.org has an AAAA record and answers on it.
✓ 2600:1901:0:d50b:: answers · 443
yes
www over IPv6
www.openssl.org has an AAAA record and answers on it.
✓ 2600:1901:0:d50b:: answers · 443
yes
Mail servers (MX) have IPv6
Every mail server has an AAAA record.
aspmx.l.google.com ✓alt1.aspmx.l.google.com ✓alt2.aspmx.l.google.com ✓alt3.aspmx.l.google.com ✓alt4.aspmx.l.google.com ✓
yes
Nameservers have IPv6
4 of 4 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.
ns-cloud-b1.googledomains.com ✓ns-cloud-b2.googledomains.com ✓ns-cloud-b3.googledomains.com ✓ns-cloud-b4.googledomains.com ✓
yes

First measured 2026-11-02; last confirmed 2026-11-02.

HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate: HTTP 200.
https://openssl.org/ via 2600:1901:0:d50b:: → 200
works
 Load openssl.org 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/openssl.org.svg)](https://aaaa.bot/openssl.org)

Check again

openssl.org  Has IPv6

A (IPv4)34.49.79.89
AAAA (IPv6)2600:1901:0:d50b::

www.openssl.org  Has IPv6

A (IPv4)34.49.79.89
AAAA (IPv6)2600:1901:0:d50b::

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/v7i7Qr2_3- · How we measure

Checked 2026-11-02 05:20:49 UTC. Full DNS report: dns.pizza/domain/openssl.org · JSON: /api/v1/openssl.org