Yes — fincs.dev has IPv6.

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

A
IPv6 readiness
Website, mail and DNS all work over IPv6.
Website over IPv6
fincs.dev has 2 IPv6 addresses and answers on every one we tested.
✓ 2606:4700:3031::ac43:acc9 answers · 443✓ 2606:4700:3033::6815:37ce answers · 443
yes
www over IPv6
www.fincs.dev has 2 IPv6 addresses and answers on every one we tested.
✓ 2606:4700:3031::ac43:acc9 answers · 443✓ 2606:4700:3033::6815:37ce answers · 443
yes
Mail servers (MX) have IPv6
No MX records, so mail goes to the domain's own address (implicit MX). It has an AAAA record.		yes
Nameservers have IPv6
2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.
zod.ns.cloudflare.com ✓rosa.ns.cloudflare.com ✓
yes
HTTPS over IPv6 · not part of the grade yet
Redirects to github.com, which has no IPv6 address — so IPv6 visitors end up needing IPv4 after all.
https://fincs.dev/ via 2606:4700:3031::ac43:acc9 → 301https://github.com/fincs · redirects to github.com, which has no IPv6 address
problem
 Load fincs.dev over IPv6 from up to six other places — a second opinion.

Nothing keeping you from an A

  1. A redirect leads off IPv6
    Redirects to github.com, which has no IPv6 address — so IPv6 visitors end up needing IPv4 after all. Give the redirect target IPv6 too, or redirect somewhere that has it.

Check again

fincs.dev  Has IPv6

A (IPv4)104.21.55.206
172.67.172.201
AAAA (IPv6)2606:4700:3031::ac43:acc9
2606:4700:3033::6815:37ce

www.fincs.dev  Has IPv6

A (IPv4)104.21.55.206
172.67.172.201
AAAA (IPv6)2606:4700:3031::ac43:acc9
2606:4700:3033::6815:37ce

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/7y_NaKcHci · How we measure

Checked 2026-11-01 02:32:35 UTC. Full DNS report: dns.pizza/domain/fincs.dev · JSON: /api/v1/fincs.dev