Yes — shamsbielefeld.org has IPv6.

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

This is a saved measurement from 2026-11-10 17:23 UTC. Check shamsbielefeld.org live now

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 shamsbielefeld.org has an AAAA record and answers on it. ✓ 2001:8d8:100f:f000::200 answers · 443	yes
www over IPv6 www.shamsbielefeld.org has an AAAA record and answers on it. ✓ 2001:8d8:100f:f000::200 answers · 443	yes
Mail servers (MX) have IPv6 Every mail server has an AAAA record. smtpin.rzone.de ✓	yes
Nameservers have IPv6 2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. docks03.rzone.de ✓shades17.rzone.de ✓	yes

HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate: HTTP 200.

https://shamsbielefeld.org/ via 2001:8d8:100f:f000::200 → 200

works

Nothing keeping you from an A

Nothing to fix
Show it off: add the badge to your README.
[![IPv6](https://aaaa.bot/badge/shamsbielefeld.org.svg)](https://aaaa.bot/shamsbielefeld.org)

Check again

shamsbielefeld.org Has IPv6

A (IPv4)	217.160.0.36
AAAA (IPv6)	2001:8d8:100f:f000::200

www.shamsbielefeld.org Has IPv6

Alias of	shamsbielefeld.org
A (IPv4)	217.160.0.36
AAAA (IPv6)	2001:8d8:100f:f000::200

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

IPv6 measurement: shamsbielefeld.org
Measured 2026-11-10 17:23:38 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    217.160.0.36
AAAA (IPv6): 2001:8d8:100f:f000::200
www AAAA:    2001:8d8:100f:f000::200

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: shamsbielefeld.org has an AAAA record and answers on it.
    2001:8d8:100f:f000::200: answers (TCP 443)
- www over IPv6: www.shamsbielefeld.org has an AAAA record and answers on it.
    2001:8d8:100f:f000::200: answers (TCP 443)
- Mail servers (MX) have IPv6: Every mail server has an AAAA record.
- Nameservers have IPv6: 2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.

Reachability = a TCP connection opened on port 443 (or 80).

HTTPS over IPv6 (not graded): Loads over IPv6 with a valid certificate: HTTP 200.
    https://shamsbielefeld.org/ via 2001:8d8:100f:f000::200 -> HTTP 200, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/rRWSnTHTfM

Permanent link: aaaa.bot/r/rRWSnTHTfM · How we measure

Checked 2026-11-10 17:23:38 UTC. Full DNS report: dns.pizza/domain/shamsbielefeld.org · Age, certificate and blocklists: how.is/shamsbielefeld.org · JSON: /api/v1/shamsbielefeld.org