Yes — mobile.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
mobile.de has 4 IPv6 addresses and answers on every one we tested (4 more not tested).
✓ 2600:9000:2870:5200:c:acae:7180:93a1 answers · 443✓ 2600:9000:2870:2e00:c:acae:7180:93a1 answers · 443✓ 2600:9000:2870:f400:c:acae:7180:93a1 answers · 443✓ 2600:9000:2870:f000:c:acae:7180:93a1 answers · 443– 2600:9000:2870:fc00:c:acae:7180:93a1 not tested– 2600:9000:2870:7e00:c:acae:7180:93a1 not tested– 2600:9000:2870:6600:c:acae:7180:93a1 not tested– 2600:9000:2870:8800:c:acae:7180:93a1 not tested
yes
www over IPv6
www.mobile.de has 2 IPv6 addresses and answers on every one we tested.
✓ 2600:1408:ec00:d::1730:cb66 answers · 443✓ 2600:1408:ec00:d::1730:cb6e answers · 443
yes
Mail servers (MX) have IPv6
None of the mail servers has an AAAA record.
mx.sendgrid.net ✗
no
Nameservers have IPv6
4 of 4 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.
ns-1413.awsdns-48.org ✓ns-1912.awsdns-47.co.uk ✓ns-376.awsdns-47.com ✓ns-676.awsdns-20.net ✓
yes
HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate after 1 redirect: HTTP 403.
https://mobile.de/ via 2600:9000:2870:5200:c:acae:7180:93a1 → 301https://www.mobile.de/ via 2600:1408:ec00:d::1730:cb66 → 403
works
 Load mobile.de over IPv6 from up to six other places — a second opinion.

What's keeping mobile.de from an A

  1. Mail servers without IPv6
    mx.sendgrid.net 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

mobile.de  Has IPv6

A (IPv4)3.170.42.53
3.170.42.3
3.170.42.48
3.170.42.106
AAAA (IPv6)2600:9000:2870:5200:c:acae:7180:93a1
2600:9000:2870:2e00:c:acae:7180:93a1
2600:9000:2870:f400:c:acae:7180:93a1
2600:9000:2870:f000:c:acae:7180:93a1
2600:9000:2870:fc00:c:acae:7180:93a1
2600:9000:2870:7e00:c:acae:7180:93a1
2600:9000:2870:6600:c:acae:7180:93a1
2600:9000:2870:8800:c:acae:7180:93a1

www.mobile.de  Has IPv6

Alias ofwww.mobile.de.edgekey.net → e237154.dscb.akamaiedge.net
A (IPv4)23.48.203.41
23.48.203.44
AAAA (IPv6)2600:1408:ec00:d::1730:cb66
2600:1408:ec00:d::1730:cb6e

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/pu7Aiyb2ck · How we measure

Checked 2026-10-31 00:04:33 UTC — one of the top 1,000 sites, re-checked weekly. Re-check now. Full DNS report: dns.pizza/domain/mobile.de · JSON: /api/v1/mobile.de