Yes — cb01one.beer has IPv6.

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

Measured 2026-11-03 20:46 UTC. We reuse a result for up to a week, so we aren't testing the same site over and over. Check cb01one.beer now

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 cb01one.beer has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3035::6815:47f1 answers · 443✓ 2606:4700:3035::ac43:ac62 answers · 443	yes
www over IPv6 www.cb01one.beer has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3035::6815:47f1 answers · 443✓ 2606:4700:3035::ac43:ac62 answers · 443	yes
Mail servers (MX) have IPv6 Every mail server has an AAAA record. route2.mx.cloudflare.net ✓route3.mx.cloudflare.net ✓route1.mx.cloudflare.net ✓	yes
Nameservers have IPv6 2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. celeste.ns.cloudflare.com ✓javier.ns.cloudflare.com ✓	yes

First measured 2026-11-03; last confirmed 2026-11-03.

HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate after 1 redirect: HTTP 200.

https://cb01one.beer/ via 2606:4700:3035::6815:47f1 → 301https://cb01one.store/ via 2606:4700:3035::6815:282 → 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/cb01one.beer.svg)](https://aaaa.bot/cb01one.beer)

Check again

cb01one.beer Has IPv6

A (IPv4)	172.67.172.98 104.21.71.241
AAAA (IPv6)	2606:4700:3035::6815:47f1 2606:4700:3035::ac43:ac62

www.cb01one.beer Has IPv6

A (IPv4)	172.67.172.98 104.21.71.241
AAAA (IPv6)	2606:4700:3035::6815:47f1 2606:4700:3035::ac43:ac62

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: cb01one.beer
Measured 2026-11-03 20:46:11 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    172.67.172.98, 104.21.71.241
AAAA (IPv6): 2606:4700:3035::6815:47f1, 2606:4700:3035::ac43:ac62
www AAAA:    2606:4700:3035::6815:47f1, 2606:4700:3035::ac43:ac62

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: cb01one.beer has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3035::6815:47f1: answers (TCP 443)
    2606:4700:3035::ac43:ac62: answers (TCP 443)
- www over IPv6: www.cb01one.beer has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3035::6815:47f1: answers (TCP 443)
    2606:4700:3035::ac43:ac62: 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 200.
    https://cb01one.beer/ via 2606:4700:3035::6815:47f1 -> HTTP 301, certificate: valid
    https://cb01one.store/ via 2606:4700:3035::6815:282 -> HTTP 200, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/6rko9gxg6n

Permanent link: aaaa.bot/r/6rko9gxg6n · How we measure

Checked 2026-11-03 20:46:11 UTC. Full DNS report: dns.pizza/domain/cb01one.beer · Age, certificate and blocklists: how.is/cb01one.beer · JSON: /api/v1/cb01one.beer