Yes — altadefinizionex.courses has IPv6.

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

This is a saved measurement from 2026-11-09 17:45 UTC. Check altadefinizionex.courses live now

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 altadefinizionex.courses has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3034::6815:1b7d answers · 443✓ 2606:4700:3031::ac43:8e97 answers · 443	yes
www over IPv6 www.altadefinizionex.courses has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3034::6815:1b7d answers · 443✓ 2606:4700:3031::ac43:8e97 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. evelyn.ns.cloudflare.com ✓miles.ns.cloudflare.com ✓	yes

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

https://altadefinizionex.courses/ via 2606:4700:3034::6815:1b7d → 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/altadefinizionex.courses.svg)](https://aaaa.bot/altadefinizionex.courses)

Check again

altadefinizionex.courses Has IPv6

A (IPv4)	172.67.142.151 104.21.27.125
AAAA (IPv6)	2606:4700:3034::6815:1b7d 2606:4700:3031::ac43:8e97

www.altadefinizionex.courses Has IPv6

A (IPv4)	104.21.27.125 172.67.142.151
AAAA (IPv6)	2606:4700:3034::6815:1b7d 2606:4700:3031::ac43:8e97

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: altadefinizionex.courses
Measured 2026-11-09 17:45:28 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    172.67.142.151, 104.21.27.125
AAAA (IPv6): 2606:4700:3034::6815:1b7d, 2606:4700:3031::ac43:8e97
www AAAA:    2606:4700:3034::6815:1b7d, 2606:4700:3031::ac43:8e97

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: altadefinizionex.courses has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3034::6815:1b7d: answers (TCP 443)
    2606:4700:3031::ac43:8e97: answers (TCP 443)
- www over IPv6: www.altadefinizionex.courses has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3034::6815:1b7d: answers (TCP 443)
    2606:4700:3031::ac43:8e97: 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: HTTP 200.
    https://altadefinizionex.courses/ via 2606:4700:3034::6815:1b7d -> HTTP 200, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/OT_sCLN5RF

Permanent link: aaaa.bot/r/OT_sCLN5RF · How we measure

Checked 2026-11-09 17:45:28 UTC. Full DNS report: dns.pizza/domain/altadefinizionex.courses · Age, certificate and blocklists: how.is/altadefinizionex.courses · JSON: /api/v1/altadefinizionex.courses