Yes — speedtest.net has IPv6.

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

This is a saved measurement from 2026-10-30 22:04 UTC. Check speedtest.net live now

B
IPv6 readiness
Works over IPv6, with one gap: www doesn't fully work over IPv6.
Website over IPv6
speedtest.net has 4 IPv6 addresses and answers on every one we tested.
✓ 2a04:4e42:400::731 answers · 443✓ 2a04:4e42::731 answers · 443✓ 2a04:4e42:600::731 answers · 443✓ 2a04:4e42:200::731 answers · 443
yes
www over IPv6
www.speedtest.net has no AAAA record.		no
Mail servers (MX) have IPv6
Every mail server has an AAAA record.
aspmx.l.google.com ✓aspmx2.googlemail.com ✓alt1.aspmx.l.google.com ✓alt2.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-1071.awsdns-05.org ✓ns-1643.awsdns-13.co.uk ✓ns-372.awsdns-46.com ✓ns-787.awsdns-34.net ✓
yes
HTTPS over IPv6 · not part of the grade yet
Redirects to www.speedtest.net, which has no IPv6 address — so IPv6 visitors end up needing IPv4 after all.
https://speedtest.net/ via 2a04:4e42:400::731 → 301https://www.speedtest.net/ · redirects to www.speedtest.net, which has no IPv6 address
problem

What's keeping speedtest.net from an A

  1. www.speedtest.net is an alias of www.speedtest.net.cdn.cloudflare.net, which has no IPv6
    www.speedtest.net is a CNAME, so it can't also have its own AAAA record. Ask whoever runs www.speedtest.net.cdn.cloudflare.net to enable IPv6 there — or replace the alias with the A and AAAA records they give you. Why some hosts don't offer IPv6
  2. A redirect leads off IPv6
    Redirects to www.speedtest.net, which has no IPv6 address — so IPv6 visitors end up needing IPv4 after all. Give the redirect target IPv6 too, or redirect somewhere that has it.

Check again

speedtest.net  Has IPv6

A (IPv4)151.101.194.219
151.101.2.219
151.101.130.219
151.101.66.219
AAAA (IPv6)2a04:4e42:400::731
2a04:4e42::731
2a04:4e42:600::731
2a04:4e42:200::731

www.speedtest.net  IPv4 only

Alias ofwww.speedtest.net.cdn.cloudflare.net
A (IPv4)104.17.147.22
104.17.148.22
AAAA (IPv6)none

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/zqxWRILsac · How we measure

Checked 2026-10-30 22:04:34 UTC. Full DNS report: dns.pizza/domain/speedtest.net · JSON: /api/v1/speedtest.net