Yes — rml-cloud.info 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
rml-cloud.info has an AAAA record and answers on it.
✓ 2001:8d8:100f:f000::2ac answers · 443
yes
www over IPv6
www.rml-cloud.info has an AAAA record and answers on it.
✓ 2001:8d8:100f:f000::2ac answers · 443
yes
Mail servers (MX) have IPv6
None of the mail servers has an AAAA record.
mx00.ionos.de ✗mx01.ionos.de ✗
no
Nameservers have IPv6
4 of 4 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.
ns1065.ui-dns.com ✓ns1117.ui-dns.org ✓ns1042.ui-dns.biz ✓ns1123.ui-dns.de ✓
yes
HTTPS over IPv6 · not part of the grade yet
rml-cloud.info didn't complete an HTTPS request over IPv6 (ERR_SSL_TLSV1_ALERT_INTERNAL_ERROR).
https://rml-cloud.info/ via 2001:8d8:100f:f000::2ac · ERR_SSL_TLSV1_ALERT_INTERNAL_ERROR
?
 Load rml-cloud.info over IPv6 from up to six other places — a second opinion.

What's keeping rml-cloud.info from an A

  1. Mail servers without IPv6
    mx00.ionos.de, mx01.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

rml-cloud.info  Has IPv6

A (IPv4)217.160.0.236
AAAA (IPv6)2001:8d8:100f:f000::2ac

www.rml-cloud.info  Has IPv6

A (IPv4)217.160.0.236
AAAA (IPv6)2001:8d8:100f:f000::2ac

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/v75JI_DvVk · How we measure

Checked 2026-11-01 22:10:31 UTC. Full DNS report: dns.pizza/domain/rml-cloud.info · JSON: /api/v1/rml-cloud.info