Yes — img.stesti.cz has IPv6.

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

Measured 2026-11-15 10:07 UTC. We reuse a result for up to a week, so we aren't testing the same site over and over. Check img.stesti.cz now

A
IPv6 readiness
Website, mail and DNS all work over IPv6.
Website over IPv6
img.stesti.cz has 3 IPv6 addresses and answers on every one we tested.
✓ 2606:4700:20::681a:309 answers · 443✓ 2606:4700:20::681a:209 answers · 443✓ 2606:4700:20::ac43:4954 answers · 443
yes
Mail servers (MX) have IPv6
No MX records, so mail goes to the domain's own address (implicit MX). It has an AAAA record.		yes
Nameservers have IPv6
2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.
brianna.ns.cloudflare.com ✓sid.ns.cloudflare.com ✓
yes

First measured 2026-11-15; last confirmed 2026-11-15.

HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate: HTTP 403.
https://img.stesti.cz/ via 2606:4700:20::681a:309 → 403
works
 Which outside scripts, fonts, payments or chat img.stesti.cz loads from have no IPv6.
 Load img.stesti.cz over IPv6 from up to six other places — a second opinion.

Nothing keeping you from an A

  1. Nothing to fix
    Show it off: add the badge to your README.
    [![IPv6](https://aaaa.bot/badge/img.stesti.cz.svg)](https://aaaa.bot/img.stesti.cz)

Check again

img.stesti.cz  Has IPv6

A (IPv4)172.67.73.84
104.26.3.9
104.26.2.9
AAAA (IPv6)2606:4700:20::681a:309
2606:4700:20::681a:209
2606:4700:20::ac43:4954

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/hVav7swHlR · How we measure

Checked 2026-11-15 10:07:59 UTC. Full DNS report: dns.pizza/domain/img.stesti.cz · Age, certificate and blocklists: how.is/img.stesti.cz · JSON: /api/v1/img.stesti.cz