Yes — kasva.dev has IPv6.

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

This is a saved measurement from 2026-11-12 12:18 UTC. Check kasva.dev live now

B
IPv6 readiness
Works over IPv6, with one gap: its mail servers lack IPv6.
Website over IPv6
kasva.dev has 2 IPv6 addresses and answers on every one we tested.
✓ 2606:4700:3033::ac43:aacd answers · 443✓ 2606:4700:3030::6815:2790 answers · 443
yes
Mail servers (MX) have IPv6
None of the mail servers has an AAAA record.
receive-apne1.forge.rmta.net ✗
no
Nameservers have IPv6
2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.
aldo.ns.cloudflare.com ✓heidi.ns.cloudflare.com ✓
yes
HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate: HTTP 200.
https://kasva.dev/ via 2606:4700:3033::ac43:aacd → 200
works

What's keeping kasva.dev from an A

  1. Mail servers without IPv6
    receive-apne1.forge.rmta.net has no AAAA record, so mail from IPv6-only servers can't reach it directly. If a provider runs your mail, that's their setting; if you run it, add AAAA records for these hosts.

Check again

kasva.dev  Has IPv6

A (IPv4)172.67.170.205
104.21.39.144
AAAA (IPv6)2606:4700:3033::ac43:aacd
2606:4700:3030::6815:2790

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/ng7ATriYf2 · How we measure

Checked 2026-11-12 12:18:52 UTC. Full DNS report: dns.pizza/domain/kasva.dev · Age, certificate and blocklists: how.is/kasva.dev · JSON: /api/v1/kasva.dev