No — dev.azbyka.ru is IPv4 only.

Has an IPv4 address but no IPv6 (AAAA) record. IPv6-only visitors can't reach it directly.

D
IPv6 readiness
The website has no IPv6.
Website over IPv6
dev.azbyka.ru has no AAAA record.		no
www over IPv6
www.dev.azbyka.ru has no AAAA record.		no
Mail servers (MX) have IPv6
Every mail server has an AAAA record.
mx.yandex.net ✓
yes
Nameservers have IPv6
3 of 3 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.
ns.masterhost.ru ✓ns1.masterhost.ru ✓ns2.masterhost.ru ✓
yes
 Which outside scripts, fonts, payments or chat dev.azbyka.ru loads from have no IPv6.

What's keeping dev.azbyka.ru from an A

  1. dev.azbyka.ru is an alias of azbyka.ru, which has no IPv6
    dev.azbyka.ru is a CNAME, so it can't also have its own AAAA record. Ask whoever runs azbyka.ru to enable IPv6 there — or replace the alias with the A and AAAA records they give you. Why some hosts don't offer IPv6
  2. Add IPv6 for www.dev.azbyka.ru
    www.dev.azbyka.ru has no AAAA record. Get www's IPv6 address from whoever hosts www and add it as an AAAA record. If the same server already serves both names (and its certificate covers www), you can reuse dev.azbyka.ru's AAAA record(s) for www. How to add an AAAA record

Check again

dev.azbyka.ru  IPv4 only

Alias ofazbyka.ru
A (IPv4)95.129.237.155
AAAA (IPv6)none

www.dev.azbyka.ru  IPv4 only

A (IPv4)158.160.166.2
AAAA (IPv6)none

What this means

Visitors on IPv6-only networks (many mobile carriers) can still reach it, but only through a translator their carrier runs (NAT64). The site itself has no IPv6 address — and you can't make one up from the IPv4. Why some hosts don't offer it

Copy the evidence — a citation-ready record of this measurement

 Permanent link: aaaa.bot/r/Cl6CTlbA06 · How we measure

Checked 2026-11-15 17:14:12 UTC. Full DNS report: dns.pizza/domain/dev.azbyka.ru · Age, certificate and blocklists: how.is/dev.azbyka.ru · JSON: /api/v1/dev.azbyka.ru