Yes — greact.org has IPv6.

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

This is a saved measurement from 2026-11-08 09:44 UTC. Check greact.org live now

B
IPv6 readiness
Works over IPv6, with one gap: its mail servers lack IPv6.
Website over IPv6
greact.org has 2 IPv6 addresses and answers on every one we tested.
✓ 2606:4700:3035::6815:677 answers · 443✓ 2606:4700:3037::ac43:86d3 answers · 443
yes
www over IPv6
www.greact.org has 2 IPv6 addresses and answers on every one we tested.
✓ 2606:4700:3035::6815:677 answers · 443✓ 2606:4700:3037::ac43:86d3 answers · 443
yes
Mail servers (MX) have IPv6
None of the mail servers has an AAAA record.
mail.protonmail.ch ✗mailsec.protonmail.ch ✗
no
Nameservers have IPv6
2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.
gene.ns.cloudflare.com ✓kevin.ns.cloudflare.com ✓
yes
HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate: HTTP 200.
https://greact.org/ via 2606:4700:3035::6815:677 → 200
works

What's keeping greact.org from an A

  1. Mail servers without IPv6
    mail.protonmail.ch, mailsec.protonmail.ch 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

greact.org  Has IPv6

A (IPv4)104.21.6.119
172.67.134.211
AAAA (IPv6)2606:4700:3035::6815:677
2606:4700:3037::ac43:86d3

www.greact.org  Has IPv6

A (IPv4)104.21.6.119
172.67.134.211
AAAA (IPv6)2606:4700:3035::6815:677
2606:4700:3037::ac43:86d3

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/QBA1MolfwL · How we measure

Checked 2026-11-08 09:44:02 UTC. Full DNS report: dns.pizza/domain/greact.org · Age, certificate and blocklists: how.is/greact.org · JSON: /api/v1/greact.org