Yes — telekom.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
telekom.de has 3 IPv6 addresses and answers on every one we tested.
✓ 2a05:d014:73f:ec03:d255:940:bce5:3d47 answers · 443✓ 2a05:d014:73f:ec04:23ef:c018:758f:d821 answers · 443✓ 2a05:d014:73f:ec05:c4bd:6cb4:3a9e:327b answers · 443
yes
www over IPv6
www.telekom.de has 4 IPv6 addresses and answers on every one we tested (4 more not tested).
✓ 2600:9000:2111:f600:7:7dca:bc80:93a1 answers · 443✓ 2600:9000:2111:c200:7:7dca:bc80:93a1 answers · 443✓ 2600:9000:2111:e200:7:7dca:bc80:93a1 answers · 443✓ 2600:9000:2111:2a00:7:7dca:bc80:93a1 answers · 443– 2600:9000:2111:cc00:7:7dca:bc80:93a1 not tested– 2600:9000:2111:a600:7:7dca:bc80:93a1 not tested– 2600:9000:2111:ce00:7:7dca:bc80:93a1 not tested– 2600:9000:2111:a800:7:7dca:bc80:93a1 not tested
yes
Mail servers (MX) have IPv6
None of the mail servers has an AAAA record.
mailin.ng.telekom.net ✗
no
Nameservers have IPv6
2 of 4 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.
dns1.telekom.de ✗ns1.telekom.net ✓pns.dtag.de ✓dns2.telekom.de ✗
yes
HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate after 2 redirects: HTTP 200.
https://telekom.de/ via 2a05:d014:73f:ec03:d255:940:bce5:3d47 → 301https://www.telekom.de/ via 2600:9000:2111:f600:7:7dca:bc80:93a1 → 301https://www.telekom.de/start via 2600:9000:2111:f600:7:7dca:bc80:93a1 → 200
works
 Load telekom.de over IPv6 from up to six other places — a second opinion.

What's keeping telekom.de from an A

  1. Mail servers without IPv6
    mailin.ng.telekom.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

telekom.de  Has IPv6

A (IPv4)52.29.103.196
63.184.16.68
3.75.123.125
AAAA (IPv6)2a05:d014:73f:ec03:d255:940:bce5:3d47
2a05:d014:73f:ec04:23ef:c018:758f:d821
2a05:d014:73f:ec05:c4bd:6cb4:3a9e:327b

www.telekom.de  Has IPv6

Alias ofd2jma3uliasueq.cloudfront.net
A (IPv4)54.230.114.105
54.230.114.56
54.230.114.5
54.230.114.32
AAAA (IPv6)2600:9000:2111:f600:7:7dca:bc80:93a1
2600:9000:2111:c200:7:7dca:bc80:93a1
2600:9000:2111:e200:7:7dca:bc80:93a1
2600:9000:2111:2a00:7:7dca:bc80:93a1
2600:9000:2111:cc00:7:7dca:bc80:93a1
2600:9000:2111:a600:7:7dca:bc80:93a1
2600:9000:2111:ce00:7:7dca:bc80:93a1
2600:9000:2111:a800:7:7dca:bc80:93a1

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/IOXq_qDqL5 · How we measure

Checked 2026-10-30 22:04:31 UTC — one of the top 1,000 sites, re-checked weekly. Re-check now. Full DNS report: dns.pizza/domain/telekom.de · JSON: /api/v1/telekom.de