Yes — globaldemo.cyou has IPv6.

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

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 globaldemo.cyou has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3037::ac43:dca6 answers · 443✓ 2606:4700:3033::6815:3e3e 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. dante.ns.cloudflare.com ✓elisabeth.ns.cloudflare.com ✓	yes

HTTPS over IPv6 · not part of the grade yet
Answered over IPv6 with a server error (HTTP 530) — can't tell whether that's specific to IPv6.

https://globaldemo.cyou/ via 2606:4700:3037::ac43:dca6 → 530

Nothing keeping you from an A

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

Check again

globaldemo.cyou Has IPv6

A (IPv4)	104.21.62.62 172.67.220.166
AAAA (IPv6)	2606:4700:3037::ac43:dca6 2606:4700:3033::6815:3e3e

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: globaldemo.cyou
Measured 2026-11-04 09:24:38 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    104.21.62.62, 172.67.220.166
AAAA (IPv6): 2606:4700:3037::ac43:dca6, 2606:4700:3033::6815:3e3e

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: globaldemo.cyou has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3037::ac43:dca6: answers (TCP 443)
    2606:4700:3033::6815:3e3e: 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): Answered over IPv6 with a server error (HTTP 530) — can't tell whether that's specific to IPv6.
    https://globaldemo.cyou/ via 2606:4700:3037::ac43:dca6 -> HTTP 530, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/2_xG7biK-O

Permanent link: aaaa.bot/r/2_xG7biK-O · How we measure

Checked 2026-11-04 09:24:38 UTC. Full DNS report: dns.pizza/domain/globaldemo.cyou · Age, certificate and blocklists: how.is/globaldemo.cyou · JSON: /api/v1/globaldemo.cyou