Yes — uio6.business has IPv6.

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

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 uio6.business has 2 IPv6 addresses and answers on every one we tested. ✓ 2a02:4780:84:3f79:3391:435f:b369:a855 answers · 443✓ 2a02:4780:84:7449:373f:b00d:c947:e680 answers · 443	yes
www over IPv6 www.uio6.business has 2 IPv6 addresses and answers on every one we tested. ✓ 2a02:4780:84:59d4:2ff9:1ea8:da74:2c09 answers · 443✓ 2a02:4780:84:188c:91f0:75e8:61e1:98a2 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. nebula.dns-parking.com ✓aurora.dns-parking.com ✓	yes

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

https://uio6.business/ via 2a02:4780:84:3f79:3391:435f:b369:a855 → 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/uio6.business.svg)](https://aaaa.bot/uio6.business)

Check again

uio6.business Has IPv6

A (IPv4)	88.222.222.230 2.57.91.51
AAAA (IPv6)	2a02:4780:84:3f79:3391:435f:b369:a855 2a02:4780:84:7449:373f:b00d:c947:e680

www.uio6.business Has IPv6

Alias of	www.uio6.business.cdn.hstgr.net
A (IPv4)	212.1.212.49 191.101.104.70
AAAA (IPv6)	2a02:4780:84:59d4:2ff9:1ea8:da74:2c09 2a02:4780:84:188c:91f0:75e8:61e1:98a2

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: uio6.business
Measured 2026-11-12 14:55:46 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    88.222.222.230, 2.57.91.51
AAAA (IPv6): 2a02:4780:84:3f79:3391:435f:b369:a855, 2a02:4780:84:7449:373f:b00d:c947:e680
www AAAA:    2a02:4780:84:59d4:2ff9:1ea8:da74:2c09, 2a02:4780:84:188c:91f0:75e8:61e1:98a2

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: uio6.business has 2 IPv6 addresses and answers on every one we tested.
    2a02:4780:84:3f79:3391:435f:b369:a855: answers (TCP 443)
    2a02:4780:84:7449:373f:b00d:c947:e680: answers (TCP 443)
- www over IPv6: www.uio6.business has 2 IPv6 addresses and answers on every one we tested.
    2a02:4780:84:59d4:2ff9:1ea8:da74:2c09: answers (TCP 443)
    2a02:4780:84:188c:91f0:75e8:61e1:98a2: 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://uio6.business/ via 2a02:4780:84:3f79:3391:435f:b369:a855 -> HTTP 200, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/BPlpCzIVRy

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

Checked 2026-11-12 14:55:46 UTC. Full DNS report: dns.pizza/domain/uio6.business · Age, certificate and blocklists: how.is/uio6.business · JSON: /api/v1/uio6.business