Yes — itu.int has IPv6.

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

A
IPv6 readiness
Website, mail and DNS all work over IPv6.
Website over IPv6
itu.int has an AAAA record and answers on it.
✓ 2a00:7580:60:a252::3250 answers · 443
yes
www over IPv6
www.itu.int has an AAAA record and answers on it.
✓ 2a00:7580:60:a252::3250 answers · 443
yes
Mail servers (MX) have IPv6
Every mail server has an AAAA record.
itu-int.mail.protection.outlook.com ✓
yes
Nameservers have IPv6
7 of 7 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.
ns.itu.ch ✓ns2.itu.ch ✓ns3.itu.ch ✓ns5.itu.ch ✓ns6.itu.ch ✓ns7.itu.ch ✓ns8.itu.ch ✓
yes
HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate after 4 redirects: HTTP 200.
https://itu.int/ via 2a00:7580:60:a252::3250 → 301https://www.itu.int/ via 2a00:7580:60:a252::3250 → 302https://www.itu.int/Pages/VariationRoot.aspx via 2a00:7580:60:a252::3250 → 302https://www.itu.int/en via 2a00:7580:60:a252::3250 → 302https://www.itu.int/en/Pages/default.aspx via 2a00:7580:60:a252::3250 → 200
works
 Load itu.int 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/itu.int.svg)](https://aaaa.bot/itu.int)

Check again

itu.int  Has IPv6

A (IPv4)156.106.253.250
AAAA (IPv6)2a00:7580:60:a252::3250

www.itu.int  Has IPv6

Alias ofwww46.site.itu.ch → sdc.itu.ch
A (IPv4)156.106.253.250
AAAA (IPv6)2a00:7580:60:a252::3250

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/mxP46SVUoR · How we measure

Checked 2026-11-01 18:26:16 UTC. Full DNS report: dns.pizza/domain/itu.int · JSON: /api/v1/itu.int