Yes — user138.tech has IPv6.

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

A
IPv6 readiness
Website, mail and DNS all work over IPv6.
Website over IPv6
user138.tech has 2 IPv6 addresses and answers on every one we tested.
✓ 2606:4700:3030::6815:5232 answers · 443✓ 2606:4700:3034::ac43:996c answers · 443
yes
www over IPv6
www.user138.tech has 2 IPv6 addresses and answers on every one we tested.
✓ 2606:4700:3030::6815:5232 answers · 443✓ 2606:4700:3034::ac43:996c 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.
jason.ns.cloudflare.com ✓teresa.ns.cloudflare.com ✓
yes
HTTPS over IPv6 · not part of the grade yet
Redirects in a loop.
https://user138.tech/ via 2606:4700:3030::6815:5232 → 301https://www.user138.tech/ via 2606:4700:3030::6815:5232 → 302
?
 Which outside scripts, fonts, payments or chat user138.tech loads from have no IPv6.
 Load user138.tech 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/user138.tech.svg)](https://aaaa.bot/user138.tech)

Check again

user138.tech  Has IPv6

A (IPv4)172.67.153.108
104.21.82.50
AAAA (IPv6)2606:4700:3030::6815:5232
2606:4700:3034::ac43:996c

www.user138.tech  Has IPv6

A (IPv4)104.21.82.50
172.67.153.108
AAAA (IPv6)2606:4700:3030::6815:5232
2606:4700:3034::ac43:996c

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/HC3wNWFFkb · How we measure

Checked 2026-11-07 16:52:46 UTC. Full DNS report: dns.pizza/domain/user138.tech · Age, certificate and blocklists: how.is/user138.tech · JSON: /api/v1/user138.tech