Yes — m.eonet.jp has IPv6.

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

A
IPv6 readiness
Website, mail and DNS all work over IPv6.
Website over IPv6
m.eonet.jp has an AAAA record and answers on it.
✓ 2001:ce8:0:1101:1::38 answers · 443
yes
Mail servers (MX) have IPv6
No MX records, so mail goes to the domain's own address (implicit MX). It has an AAAA record.		yes
Nameservers have IPv6
2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.
ns7.eonet.ne.jp ✓ns1.eonet.ne.jp ✓
yes
HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate: HTTP 200.
https://m.eonet.jp/ via 2001:ce8:0:1101:1::38 → 200
works
 Which outside scripts, fonts, payments or chat m.eonet.jp loads from have no IPv6.
 Load m.eonet.jp 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/m.eonet.jp.svg)](https://aaaa.bot/m.eonet.jp)

Check again

m.eonet.jp  Has IPv6

A (IPv4)203.140.81.117
AAAA (IPv6)2001:ce8:0:1101:1::38

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/Ll-aSd-D_X · How we measure

Checked 2026-11-15 16:26:10 UTC. Full DNS report: dns.pizza/domain/m.eonet.jp · Age, certificate and blocklists: how.is/m.eonet.jp · JSON: /api/v1/m.eonet.jp