Yes — worldinasphere.com 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
worldinasphere.com has an AAAA record and answers on it.
✓ 2001:8d8:100f:f000::200 answers · 443
yes
www over IPv6
www.worldinasphere.com has an AAAA record and answers on it.
✓ 2001:8d8:100f:f000::200 answers · 443
yes
Mail servers (MX) have IPv6
None of the mail servers has an AAAA record.
mx01.ionos.de ✗mx00.ionos.de ✗
no
Nameservers have IPv6
4 of 4 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.
ns1082.ui-dns.de ✓ns1029.ui-dns.biz ✓ns1111.ui-dns.org ✓ns1072.ui-dns.com ✓
yes
HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate: HTTP 200.
https://worldinasphere.com/ via 2001:8d8:100f:f000::200 → 200
works
 Which outside scripts, fonts, payments or chat worldinasphere.com loads from have no IPv6.
 Load worldinasphere.com over IPv6 from up to six other places — a second opinion.

What's keeping worldinasphere.com from an A

  1. Mail servers without IPv6
    mx01.ionos.de, mx00.ionos.de have no AAAA record, so mail from IPv6-only servers can't reach them directly. If a provider runs your mail, that's their setting; if you run it, add AAAA records for these hosts.

Check again

worldinasphere.com  Has IPv6

A (IPv4)217.160.0.175
AAAA (IPv6)2001:8d8:100f:f000::200

www.worldinasphere.com  Has IPv6

A (IPv4)217.160.0.175
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

 Permanent link: aaaa.bot/r/T2uU08__pw · How we measure

Checked 2026-11-12 05:05:00 UTC. Full DNS report: dns.pizza/domain/worldinasphere.com · Age, certificate and blocklists: how.is/worldinasphere.com · JSON: /api/v1/worldinasphere.com