Yes — trybarclaysimpsonlabs.com has IPv6.

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

This is a saved measurement from 2026-10-30 18:07 UTC. Check trybarclaysimpsonlabs.com live now

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 trybarclaysimpsonlabs.com has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3033::6815:469 answers · 443✓ 2606:4700:3030::ac43:83fc answers · 443	yes
www over IPv6 www.trybarclaysimpsonlabs.com has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3030::ac43:83fc answers · 443✓ 2606:4700:3033::6815:469 answers · 443	yes
Mail servers (MX) have IPv6 Every mail server has an AAAA record. aspmx.l.google.com ✓alt3.aspmx.l.google.com ✓alt4.aspmx.l.google.com ✓alt1.aspmx.l.google.com ✓alt2.aspmx.l.google.com ✓	yes
Nameservers have IPv6 2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. jaxson.ns.cloudflare.com ✓olga.ns.cloudflare.com ✓	yes

HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate: HTTP 404.

https://trybarclaysimpsonlabs.com/ via 2606:4700:3033::6815:469 → 404

works

Nothing keeping you from an A

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

Check again

trybarclaysimpsonlabs.com Has IPv6

A (IPv4)	172.67.131.252 104.21.4.105
AAAA (IPv6)	2606:4700:3033::6815:469 2606:4700:3030::ac43:83fc

www.trybarclaysimpsonlabs.com Has IPv6

A (IPv4)	172.67.131.252 104.21.4.105
AAAA (IPv6)	2606:4700:3030::ac43:83fc 2606:4700:3033::6815:469

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

IPv6 measurement: trybarclaysimpsonlabs.com
Measured 2026-10-30 18:07:46 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    172.67.131.252, 104.21.4.105
AAAA (IPv6): 2606:4700:3033::6815:469, 2606:4700:3030::ac43:83fc
www AAAA:    2606:4700:3030::ac43:83fc, 2606:4700:3033::6815:469

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: trybarclaysimpsonlabs.com has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3033::6815:469: answers (TCP 443)
    2606:4700:3030::ac43:83fc: answers (TCP 443)
- www over IPv6: www.trybarclaysimpsonlabs.com has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3030::ac43:83fc: answers (TCP 443)
    2606:4700:3033::6815:469: answers (TCP 443)
- Mail servers (MX) have IPv6: Every mail server has an AAAA record.
- Nameservers have IPv6: 2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.

Reachability = a TCP connection opened on port 443 (or 80).

HTTPS over IPv6 (not graded): Loads over IPv6 with a valid certificate: HTTP 404.
    https://trybarclaysimpsonlabs.com/ via 2606:4700:3033::6815:469 -> HTTP 404, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/g6_PHmpNfT

Permanent link: aaaa.bot/r/g6_PHmpNfT · How we measure

Checked 2026-10-30 18:07:46 UTC. Full DNS report: dns.pizza/domain/trybarclaysimpsonlabs.com · JSON: /api/v1/trybarclaysimpsonlabs.com