Yes — stackfi.sbs has IPv6.

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

A
IPv6 readiness
Website, mail and DNS all work over IPv6.
Website over IPv6
stackfi.sbs has 2 IPv6 addresses and answers on every one we tested.
✓ 2606:4700:3036::ac43:9c2c answers · 443✓ 2606:4700:3034::6815:30ca answers · 443
yes
www over IPv6
www.stackfi.sbs has 2 IPv6 addresses and answers on every one we tested.
✓ 2606:4700:3034::6815:30ca answers · 443✓ 2606:4700:3036::ac43:9c2c 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.
noel.ns.cloudflare.com ✓samara.ns.cloudflare.com ✓
yes
HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate: HTTP 200.
https://stackfi.sbs/ via 2606:4700:3036::ac43:9c2c → 200
works
 Which outside scripts, fonts, payments or chat stackfi.sbs loads from have no IPv6.
 Load stackfi.sbs over IPv6 from up to six other places — a second opinion.

Nothing keeping you from an A

  1. Nothing to fix
    Show it off: add the badge to your README.
    [![IPv6](https://aaaa.bot/badge/stackfi.sbs.svg)](https://aaaa.bot/stackfi.sbs)

Check again

stackfi.sbs  Has IPv6

A (IPv4)172.67.156.44
104.21.48.202
AAAA (IPv6)2606:4700:3036::ac43:9c2c
2606:4700:3034::6815:30ca

www.stackfi.sbs  Has IPv6

A (IPv4)104.21.48.202
172.67.156.44
AAAA (IPv6)2606:4700:3034::6815:30ca
2606:4700:3036::ac43:9c2c

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/3zO_6tweLv · How we measure

Checked 2026-11-11 11:18:29 UTC. Full DNS report: dns.pizza/domain/stackfi.sbs · Age, certificate and blocklists: how.is/stackfi.sbs · JSON: /api/v1/stackfi.sbs