Yes — ddnss.de 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
ddnss.de has an AAAA record and answers on it.
✓ 2001:4ba0:ffe6:1f::1 answers · 443
yes
www over IPv6
www.ddnss.de has an AAAA record and answers on it.
✓ 2001:4ba0:ffe6:1f::1 answers · 443
yes
Mail servers (MX) have IPv6
None of the mail servers has an AAAA record.
mail.mc-p.de ✗
no
Nameservers have IPv6
3 of 3 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.
ns1.ddnss.de ✓ns2.ddnss.de ✓ns3.ddnss.de ✓
yes
HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate: HTTP 403.
https://ddnss.de/ via 2001:4ba0:ffe6:1f::1 → 403
works
 Load ddnss.de over IPv6 from up to six other places — a second opinion.

What's keeping ddnss.de from an A

  1. Mail servers without IPv6
    mail.mc-p.de 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

ddnss.de  Has IPv6

A (IPv4)85.114.136.161
AAAA (IPv6)2001:4ba0:ffe6:1f::1

www.ddnss.de  Has IPv6

A (IPv4)85.114.136.161
AAAA (IPv6)2001:4ba0:ffe6:1f::1

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/gD1xU78B1V · How we measure

Checked 2026-10-31 01:04:31 UTC — one of the top 1,000 sites, re-checked weekly. Re-check now. Full DNS report: dns.pizza/domain/ddnss.de · JSON: /api/v1/ddnss.de