Yes — betano.cz has IPv6.

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

This is a saved measurement from 2026-11-04 22:55 UTC. Check betano.cz live now

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 betano.cz has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:4407::6812:23f4 answers · 443✓ 2a06:98c1:3104::ac40:980c answers · 443	yes
www over IPv6 www.betano.cz has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:4407::6812:23f4 answers · 443✓ 2a06:98c1:3104::ac40:980c answers · 443	yes
Mail servers (MX) have IPv6 Every mail server has an AAAA record. aspmx.l.google.com ✓alt3.aspmx.l.google.com ✓alt4.aspmx.l.google.com ✓alt1.aspmx.l.google.com ✓alt2.aspmx.l.google.com ✓	yes
Nameservers have IPv6 2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. dan.ns.cloudflare.com ✓dawn.ns.cloudflare.com ✓	yes

HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate after 1 redirect: HTTP 403.

https://betano.cz/ via 2606:4700:4407::6812:23f4 → 301https://www.betano.cz/ via 2606:4700:4407::6812:23f4 → 403

works

Nothing keeping you from an A

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

Check again

betano.cz Has IPv6

A (IPv4)	172.64.152.12 104.18.35.244
AAAA (IPv6)	2606:4700:4407::6812:23f4 2a06:98c1:3104::ac40:980c

www.betano.cz Has IPv6

A (IPv4)	172.64.152.12 104.18.35.244
AAAA (IPv6)	2606:4700:4407::6812:23f4 2a06:98c1:3104::ac40:980c

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

IPv6 measurement: betano.cz
Measured 2026-11-04 22:55:37 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    172.64.152.12, 104.18.35.244
AAAA (IPv6): 2606:4700:4407::6812:23f4, 2a06:98c1:3104::ac40:980c
www AAAA:    2606:4700:4407::6812:23f4, 2a06:98c1:3104::ac40:980c

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: betano.cz has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:4407::6812:23f4: answers (TCP 443)
    2a06:98c1:3104::ac40:980c: answers (TCP 443)
- www over IPv6: www.betano.cz has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:4407::6812:23f4: answers (TCP 443)
    2a06:98c1:3104::ac40:980c: answers (TCP 443)
- Mail servers (MX) have IPv6: Every mail server has an AAAA record.
- Nameservers have IPv6: 2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.

Reachability = a TCP connection opened on port 443 (or 80).

HTTPS over IPv6 (not graded): Loads over IPv6 with a valid certificate after 1 redirect: HTTP 403.
    https://betano.cz/ via 2606:4700:4407::6812:23f4 -> HTTP 301, certificate: valid
    https://www.betano.cz/ via 2606:4700:4407::6812:23f4 -> HTTP 403, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/fGl0pdF57Q

Permanent link: aaaa.bot/r/fGl0pdF57Q · How we measure

Checked 2026-11-04 22:55:37 UTC. Full DNS report: dns.pizza/domain/betano.cz · Age, certificate and blocklists: how.is/betano.cz · JSON: /api/v1/betano.cz