Yes — contropelo.info has IPv6.

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

B
IPv6 readiness
Works over IPv6, with one gap: its mail servers lack IPv6.
Website over IPv6
contropelo.info has an AAAA record and answers on it.
✓ 2a00:6d40:4:3::c241:43 answers · 443
yes
www over IPv6
www.contropelo.info has an AAAA record and answers on it.
✓ 2a00:6d40:4:3::c241:43 answers · 443
yes
Mail servers (MX) have IPv6
None of the mail servers has an AAAA record.
mx.contropelo.info ✗
no
Nameservers have IPv6
4 of 4 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.
dns3.arubadns.net ✓dns4.arubadns.cz ✓dns.technorail.com ✓dns2.technorail.com ✓
yes
HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate after 1 redirect: HTTP 200.
https://contropelo.info/ via 2a00:6d40:4:3::c241:43 → 301https://www.contropelo.info/ via 2a00:6d40:4:3::c241:43 → 200
works
 Load contropelo.info over IPv6 from up to six other places — a second opinion.

What's keeping contropelo.info from an A

  1. Mail servers without IPv6
    mx.contropelo.info has no AAAA record, so mail from IPv6-only servers can't reach it directly. If a provider runs your mail, that's their setting; if you run it, add AAAA records for these hosts.

Check again

contropelo.info  Has IPv6

A (IPv4)89.46.106.43
AAAA (IPv6)2a00:6d40:4:3::c241:43

www.contropelo.info  Has IPv6

Alias ofcontropelo.info
A (IPv4)89.46.106.43
AAAA (IPv6)2a00:6d40:4:3::c241:43

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/bIh_mEYsKI · How we measure

Checked 2026-11-04 09:09:26 UTC. Full DNS report: dns.pizza/domain/contropelo.info · Age, certificate and blocklists: how.is/contropelo.info · JSON: /api/v1/contropelo.info