Yes — prototip33.online has IPv6.

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

C
IPv6 readiness
Works over IPv6, with gaps: its mail servers lack IPv6; its nameservers lack IPv6.
Website over IPv6
prototip33.online has an AAAA record and answers on it.
✓ 2a00:f940:2:2:1:1:0:186 answers · 443
yes
www over IPv6
www.prototip33.online has an AAAA record and answers on it.
✓ 2a00:f940:2:2:1:1:0:186 answers · 443
yes
Mail servers (MX) have IPv6
None of the mail servers has an AAAA record.
mx1.hosting.reg.ru ✗mx2.hosting.reg.ru ✗
no
Nameservers have IPv6
No nameserver has an AAAA record — an IPv6-only resolver can't reach this domain's DNS.
ns1.hosting.reg.ru ✗ns2.hosting.reg.ru ✗
no
HTTPS over IPv6 · not part of the grade yet
The certificate served over IPv6 at 2a00:f940:2:2:1:1:0:186 isn't valid for prototip33.online: DEPTH_ZERO_SELF_SIGNED_CERT.
https://prototip33.online/ via 2a00:f940:2:2:1:1:0:186 · DEPTH_ZERO_SELF_SIGNED_CERT
problem
 Which outside scripts, fonts, payments or chat prototip33.online loads from have no IPv6.
 Load prototip33.online over IPv6 from up to six other places — a second opinion.

What's keeping prototip33.online from an A

  1. The certificate served over IPv6 is wrong
    The certificate served over IPv6 at 2a00:f940:2:2:1:1:0:186 isn't valid for prototip33.online: DEPTH_ZERO_SELF_SIGNED_CERT. Often the IPv6 address points at a different server (or an old one) than IPv4 does. Make sure 2a00:f940:2:2:1:1:0:186 serves the same certificate as your IPv4 address.
  2. Mail servers without IPv6
    mx1.hosting.reg.ru, mx2.hosting.reg.ru 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.
  3. Nameservers without IPv6
    ns1.hosting.reg.ru, ns2.hosting.reg.ru all have no AAAA record, so a resolver that only speaks IPv6 can't look your domain up. Most DNS providers offer IPv6 nameservers; ask yours, or move DNS to one that does.

Check again

prototip33.online  Has IPv6

A (IPv4)31.31.196.247
AAAA (IPv6)2a00:f940:2:2:1:1:0:186

www.prototip33.online  Has IPv6

A (IPv4)31.31.196.247
AAAA (IPv6)2a00:f940:2:2:1:1:0:186

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/0K1MvzWUEN · How we measure

Checked 2026-11-09 13:24:13 UTC. Full DNS report: dns.pizza/domain/prototip33.online · Age, certificate and blocklists: how.is/prototip33.online · JSON: /api/v1/prototip33.online