Has both IPv4 (A) and IPv6 (AAAA) addresses.
| Website over IPv6 withbarclaysimpsonhq.com has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3033::6815:5d47 answers · 443✓ 2606:4700:3033::ac43:ce66 answers · 443 | yes |
| www over IPv6 www.withbarclaysimpsonhq.com has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3033::6815:5d47 answers · 443✓ 2606:4700:3033::ac43:ce66 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. leia.ns.cloudflare.com ✓ned.ns.cloudflare.com ✓ | yes |
| HTTPS over IPv6 · not part of the grade yet Loads over IPv6 with a valid certificate: HTTP 404. https://withbarclaysimpsonhq.com/ via 2606:4700:3033::6815:5d47 → 404 | works |
withbarclaysimpsonhq.com Has IPv6
| A (IPv4) | 172.67.206.102 104.21.93.71 |
|---|---|
| AAAA (IPv6) | 2606:4700:3033::6815:5d47 2606:4700:3033::ac43:ce66 |
www.withbarclaysimpsonhq.com Has IPv6
| A (IPv4) | 104.21.93.71 172.67.206.102 |
|---|---|
| AAAA (IPv6) | 2606:4700:3033::6815:5d47 2606:4700:3033::ac43:ce66 |
Browsers on dual-stack networks will usually pick IPv6 here (the "Happy Eyeballs" algorithm races both and prefers v6).
Permanent link: aaaa.bot/r/zupxvmTITY · How we measure
Checked 2026-10-30 22:16:50 UTC. Full DNS report: dns.pizza/domain/withbarclaysimpsonhq.com · JSON: /api/v1/withbarclaysimpsonhq.com