Yes — mobile.ifortuna.cz has IPv6.

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

Measured 2026-11-14 03:28 UTC. We reuse a result for up to a week, so we aren't testing the same site over and over. Check mobile.ifortuna.cz now

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 mobile.ifortuna.cz has 2 IPv6 addresses and answers on every one we tested. ✓ 2a06:98c1:3101::6812:2906 answers · 443✓ 2a06:98c1:3105::ac40:92fa answers · 443	yes
www over IPv6 www.mobile.ifortuna.cz has 2 IPv6 addresses and answers on every one we tested. ✓ 2a06:98c1:3105::ac40:92fa answers · 443✓ 2a06:98c1:3101::6812:2906 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. kipp.ns.cloudflare.com ✓zara.ns.cloudflare.com ✓	yes

First measured 2026-11-14; last confirmed 2026-11-14.

HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate: HTTP 200.

https://mobile.ifortuna.cz/ via 2a06:98c1:3101::6812:2906 → 200

works

Nothing keeping you from an A

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

Check again

mobile.ifortuna.cz Has IPv6

A (IPv4)	172.64.146.250 104.18.41.6
AAAA (IPv6)	2a06:98c1:3101::6812:2906 2a06:98c1:3105::ac40:92fa

www.mobile.ifortuna.cz Has IPv6

A (IPv4)	172.64.146.250 104.18.41.6
AAAA (IPv6)	2a06:98c1:3105::ac40:92fa 2a06:98c1:3101::6812:2906

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: mobile.ifortuna.cz
Measured 2026-11-14 03:28:12 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    172.64.146.250, 104.18.41.6
AAAA (IPv6): 2a06:98c1:3101::6812:2906, 2a06:98c1:3105::ac40:92fa
www AAAA:    2a06:98c1:3105::ac40:92fa, 2a06:98c1:3101::6812:2906

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: mobile.ifortuna.cz has 2 IPv6 addresses and answers on every one we tested.
    2a06:98c1:3101::6812:2906: answers (TCP 443)
    2a06:98c1:3105::ac40:92fa: answers (TCP 443)
- www over IPv6: www.mobile.ifortuna.cz has 2 IPv6 addresses and answers on every one we tested.
    2a06:98c1:3105::ac40:92fa: answers (TCP 443)
    2a06:98c1:3101::6812:2906: answers (TCP 443)
- Mail servers (MX) have IPv6: No MX records, so mail goes to the domain's own address (implicit MX). It 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: HTTP 200.
    https://mobile.ifortuna.cz/ via 2a06:98c1:3101::6812:2906 -> HTTP 200, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/9YI1gDjJXx

Permanent link: aaaa.bot/r/9YI1gDjJXx · How we measure

Checked 2026-11-14 03:28:12 UTC. Full DNS report: dns.pizza/domain/mobile.ifortuna.cz · Age, certificate and blocklists: how.is/mobile.ifortuna.cz · JSON: /api/v1/mobile.ifortuna.cz