Yes — cardinalrefunds.org has IPv6.

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

This is a saved measurement from 2026-11-08 02:35 UTC. Check cardinalrefunds.org live now

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 cardinalrefunds.org has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3030::ac43:a014 answers · 443✓ 2606:4700:3037::6815:ea9 answers · 443	yes
www over IPv6 www.cardinalrefunds.org has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3037::6815:ea9 answers · 443✓ 2606:4700:3030::ac43:a014 answers · 443	yes
Mail servers (MX) have IPv6 Every mail server has an AAAA record. cardinalrefunds-com.mail.protection.outlook.com ✓	yes
Nameservers have IPv6 2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. melina.ns.cloudflare.com ✓noel.ns.cloudflare.com ✓	yes

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

https://cardinalrefunds.org/ via 2606:4700:3030::ac43:a014 → 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/cardinalrefunds.org.svg)](https://aaaa.bot/cardinalrefunds.org)

Check again

cardinalrefunds.org Has IPv6

A (IPv4)	172.67.160.20 104.21.14.169
AAAA (IPv6)	2606:4700:3030::ac43:a014 2606:4700:3037::6815:ea9

www.cardinalrefunds.org Has IPv6

A (IPv4)	104.21.14.169 172.67.160.20
AAAA (IPv6)	2606:4700:3037::6815:ea9 2606:4700:3030::ac43:a014

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: cardinalrefunds.org
Measured 2026-11-08 02:35:28 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    172.67.160.20, 104.21.14.169
AAAA (IPv6): 2606:4700:3030::ac43:a014, 2606:4700:3037::6815:ea9
www AAAA:    2606:4700:3037::6815:ea9, 2606:4700:3030::ac43:a014

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: cardinalrefunds.org has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3030::ac43:a014: answers (TCP 443)
    2606:4700:3037::6815:ea9: answers (TCP 443)
- www over IPv6: www.cardinalrefunds.org has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3037::6815:ea9: answers (TCP 443)
    2606:4700:3030::ac43:a014: 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://cardinalrefunds.org/ via 2606:4700:3030::ac43:a014 -> HTTP 200, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/API9Dr1KEZ

Permanent link: aaaa.bot/r/API9Dr1KEZ · How we measure

Checked 2026-11-08 02:35:28 UTC. Full DNS report: dns.pizza/domain/cardinalrefunds.org · Age, certificate and blocklists: how.is/cardinalrefunds.org · JSON: /api/v1/cardinalrefunds.org