Yes — iso.org has IPv6.

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

This is a saved measurement from 2026-10-31 02:04 UTC. Check iso.org live now

A
IPv6 readiness
Website, mail and DNS all work over IPv6.
Website over IPv6
iso.org has 2 IPv6 addresses and answers on every one we tested.
✓ 2606:4700::6812:117c answers · 443✓ 2606:4700::6812:107c answers · 443
yes
www over IPv6
www.iso.org has 2 IPv6 addresses and answers on every one we tested.
✓ 2606:4700::6812:107c answers · 443✓ 2606:4700::6812:117c answers · 443
yes
Mail servers (MX) have IPv6
Every mail server has an AAAA record.
iso-org.mail.protection.outlook.com ✓
yes
Nameservers have IPv6
2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.
lila.ns.cloudflare.com ✓sullivan.ns.cloudflare.com ✓
yes
HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate: HTTP 403.
https://iso.org/ via 2606:4700::6812:117c → 403
works

Nothing keeping you from an A

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

Check again

iso.org  Has IPv6

A (IPv4)104.18.16.124
104.18.17.124
AAAA (IPv6)2606:4700::6812:117c
2606:4700::6812:107c

www.iso.org  Has IPv6

A (IPv4)104.18.17.124
104.18.16.124
AAAA (IPv6)2606:4700::6812:107c
2606:4700::6812:117c

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/pIwrnKqFAs · How we measure

Checked 2026-10-31 02:04:31 UTC. Full DNS report: dns.pizza/domain/iso.org · JSON: /api/v1/iso.org