Yes — ust-alina.online 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
ust-alina.online has an AAAA record and answers on it.
✓ 2a0a:7d80:1:7::171 answers · 443
yes
www over IPv6
www.ust-alina.online has an AAAA record and answers on it.
✓ 2a0a:7d80:1:7::171 answers · 443
yes
Mail servers (MX) have IPv6
None of the mail servers has an AAAA record.
mx.hoster.by ✗
no
Nameservers have IPv6
2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.
ns2.hoster.by ✓ns1.hoster.by ✓
yes
HTTPS over IPv6 · not part of the grade yet
The certificate served over IPv6 at 2a0a:7d80:1:7::171 isn't valid for ust-alina.online: DEPTH_ZERO_SELF_SIGNED_CERT.
https://ust-alina.online/ via 2a0a:7d80:1:7::171 · DEPTH_ZERO_SELF_SIGNED_CERT
problem
 Which outside scripts, fonts, payments or chat ust-alina.online loads from have no IPv6.
 Load ust-alina.online over IPv6 from up to six other places — a second opinion.

What's keeping ust-alina.online from an A

  1. The certificate served over IPv6 is wrong
    The certificate served over IPv6 at 2a0a:7d80:1:7::171 isn't valid for ust-alina.online: DEPTH_ZERO_SELF_SIGNED_CERT. Often the IPv6 address points at a different server (or an old one) than IPv4 does. Make sure 2a0a:7d80:1:7::171 serves the same certificate as your IPv4 address.
  2. Mail servers without IPv6
    mx.hoster.by 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

ust-alina.online  Has IPv6

A (IPv4)87.232.64.171
AAAA (IPv6)2a0a:7d80:1:7::171

www.ust-alina.online  Has IPv6

A (IPv4)87.232.64.171
AAAA (IPv6)2a0a:7d80:1:7::171

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/vXCh4b8BhS · How we measure

Checked 2026-11-12 16:40:28 UTC. Full DNS report: dns.pizza/domain/ust-alina.online · Age, certificate and blocklists: how.is/ust-alina.online · JSON: /api/v1/ust-alina.online