Yes — netsys-lab.org has IPv6.

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

This is a saved measurement from 2026-11-10 14:43 UTC. Check netsys-lab.org live now

A
IPv6 readiness
Website, mail and DNS all work over IPv6.
Website over IPv6
netsys-lab.org has 2 IPv6 addresses and answers on every one we tested.
✓ 2606:4700:3037::6815:44f9 answers · 443✓ 2606:4700:3033::ac43:c885 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.
dara.ns.cloudflare.com ✓john.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://netsys-lab.org/ via 2606:4700:3037::6815:44f9 → 301https://github.com/ · redirects to github.com, which has no IPv6 address
problem

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

netsys-lab.org  Has IPv6

A (IPv4)172.67.200.133
104.21.68.249
AAAA (IPv6)2606:4700:3037::6815:44f9
2606:4700:3033::ac43:c885

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/Too0T1dbQY · How we measure

Checked 2026-11-10 14:43:25 UTC. Full DNS report: dns.pizza/domain/netsys-lab.org · Age, certificate and blocklists: how.is/netsys-lab.org · JSON: /api/v1/netsys-lab.org