Yes — rugbysixnation.com has IPv6.

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

This is a saved measurement from 2026-11-05 12:27 UTC. Check rugbysixnation.com live now

IPv6 readiness

Works over IPv6, with one gap: its mail servers lack IPv6.

Website over IPv6 rugbysixnation.com has 3 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:20::ac43:468b answers · 443✓ 2606:4700:20::681a:1f5 answers · 443✓ 2606:4700:20::681a:f5 answers · 443	yes
www over IPv6 www.rugbysixnation.com has 3 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:20::681a:1f5 answers · 443✓ 2606:4700:20::ac43:468b answers · 443✓ 2606:4700:20::681a:f5 answers · 443	yes
Mail servers (MX) have IPv6 None of the mail servers has an AAAA record. us1-smtp.messagingengine.com ✗us2-smtp.messagingengine.com ✗	no
Nameservers have IPv6 2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. alina.ns.cloudflare.com ✓terry.ns.cloudflare.com ✓	yes

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

https://rugbysixnation.com/ via 2606:4700:20::ac43:468b → 308https://www.rugbysixnation.com/ via 2606:4700:20::681a:1f5 → 200

works

What's keeping rugbysixnation.com from an A

Mail servers without IPv6
us1-smtp.messagingengine.com, us2-smtp.messagingengine.com have no AAAA record, so mail from IPv6-only servers can't reach them directly. If a provider runs your mail, that's their setting; if you run it, add AAAA records for these hosts.

Check again

rugbysixnation.com Has IPv6

A (IPv4)	172.67.70.139 104.26.0.245 104.26.1.245
AAAA (IPv6)	2606:4700:20::ac43:468b 2606:4700:20::681a:1f5 2606:4700:20::681a:f5

www.rugbysixnation.com Has IPv6

A (IPv4)	104.26.0.245 172.67.70.139 104.26.1.245
AAAA (IPv6)	2606:4700:20::681a:1f5 2606:4700:20::ac43:468b 2606:4700:20::681a:f5

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: rugbysixnation.com
Measured 2026-11-05 12:27:32 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    172.67.70.139, 104.26.0.245, 104.26.1.245
AAAA (IPv6): 2606:4700:20::ac43:468b, 2606:4700:20::681a:1f5, 2606:4700:20::681a:f5
www AAAA:    2606:4700:20::681a:1f5, 2606:4700:20::ac43:468b, 2606:4700:20::681a:f5

Readiness grade B: Works over IPv6, with one gap: its mail servers lack IPv6.
- Website over IPv6: rugbysixnation.com has 3 IPv6 addresses and answers on every one we tested.
    2606:4700:20::ac43:468b: answers (TCP 443)
    2606:4700:20::681a:1f5: answers (TCP 443)
    2606:4700:20::681a:f5: answers (TCP 443)
- www over IPv6: www.rugbysixnation.com has 3 IPv6 addresses and answers on every one we tested.
    2606:4700:20::681a:1f5: answers (TCP 443)
    2606:4700:20::ac43:468b: answers (TCP 443)
    2606:4700:20::681a:f5: answers (TCP 443)
- Mail servers (MX) have IPv6: None of the mail servers 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://rugbysixnation.com/ via 2606:4700:20::ac43:468b -> HTTP 308, certificate: valid
    https://www.rugbysixnation.com/ via 2606:4700:20::681a:1f5 -> HTTP 200, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/B1zXUnyEyU

Permanent link: aaaa.bot/r/B1zXUnyEyU · How we measure

Checked 2026-11-05 12:27:32 UTC. Full DNS report: dns.pizza/domain/rugbysixnation.com · Age, certificate and blocklists: how.is/rugbysixnation.com · JSON: /api/v1/rugbysixnation.com