Yes — casino3994.courses has IPv6.

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

This is a saved measurement from 2026-11-04 07:32 UTC. Check casino3994.courses live now

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 casino3994.courses has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3033::ac43:9bae answers · 443✓ 2606:4700:3037::6815:48eb answers · 443	yes
www over IPv6 www.casino3994.courses has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3037::6815:48eb answers · 443✓ 2606:4700:3033::ac43:9bae 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. hans.ns.cloudflare.com ✓leia.ns.cloudflare.com ✓	yes

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

https://casino3994.courses/ via 2606:4700:3033::ac43:9bae → 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/casino3994.courses.svg)](https://aaaa.bot/casino3994.courses)

Check again

casino3994.courses Has IPv6

A (IPv4)	172.67.155.174 104.21.72.235
AAAA (IPv6)	2606:4700:3033::ac43:9bae 2606:4700:3037::6815:48eb

www.casino3994.courses Has IPv6

A (IPv4)	104.21.72.235 172.67.155.174
AAAA (IPv6)	2606:4700:3037::6815:48eb 2606:4700:3033::ac43:9bae

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: casino3994.courses
Measured 2026-11-04 07:32:13 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    172.67.155.174, 104.21.72.235
AAAA (IPv6): 2606:4700:3033::ac43:9bae, 2606:4700:3037::6815:48eb
www AAAA:    2606:4700:3037::6815:48eb, 2606:4700:3033::ac43:9bae

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: casino3994.courses has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3033::ac43:9bae: answers (TCP 443)
    2606:4700:3037::6815:48eb: answers (TCP 443)
- www over IPv6: www.casino3994.courses has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3037::6815:48eb: answers (TCP 443)
    2606:4700:3033::ac43:9bae: 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 403.
    https://casino3994.courses/ via 2606:4700:3033::ac43:9bae -> HTTP 403, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/bBa6B9kdkE

Permanent link: aaaa.bot/r/bBa6B9kdkE · How we measure

Checked 2026-11-04 07:32:13 UTC. Full DNS report: dns.pizza/domain/casino3994.courses · Age, certificate and blocklists: how.is/casino3994.courses · JSON: /api/v1/casino3994.courses