Yes — luckycat.sbs has IPv6.

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

This is a saved measurement from 2026-10-31 13:09 UTC. Check luckycat.sbs live now

B
IPv6 readiness
Works over IPv6, with one gap: its mail servers lack IPv6.
Website over IPv6
luckycat.sbs has 2 IPv6 addresses and answers on every one we tested.
✓ 2606:4700:3032::6815:373a answers · 443✓ 2606:4700:3034::ac43:9148 answers · 443
yes
Mail servers (MX) have IPv6
None of the mail servers has an AAAA record.
mx1.titan.email ✗mx2.titan.email ✗
no
Nameservers have IPv6
2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.
moura.ns.cloudflare.com ✓tegan.ns.cloudflare.com ✓
yes
HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate: HTTP 200.
https://luckycat.sbs/ via 2606:4700:3032::6815:373a → 200
works

What's keeping luckycat.sbs from an A

  1. Mail servers without IPv6
    mx1.titan.email, mx2.titan.email 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

luckycat.sbs  Has IPv6

A (IPv4)104.21.55.58
172.67.145.72
AAAA (IPv6)2606:4700:3032::6815:373a
2606:4700:3034::ac43:9148

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

 Permanent link: aaaa.bot/r/0KQQJdCfda · How we measure

Checked 2026-10-31 13:09:31 UTC. Full DNS report: dns.pizza/domain/luckycat.sbs · JSON: /api/v1/luckycat.sbs