Has both IPv4 (A) and IPv6 (AAAA) addresses.
| Website over IPv6 usebarclaysimpsonstudio.com has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3033::ac43:dc83 answers · 443✓ 2606:4700:3034::6815:1124 answers · 443 | yes |
| www over IPv6 www.usebarclaysimpsonstudio.com has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3034::6815:1124 answers · 443✓ 2606:4700:3033::ac43:dc83 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://usebarclaysimpsonstudio.com/ via 2606:4700:3033::ac43:dc83 → 404 | works |
usebarclaysimpsonstudio.com Has IPv6
| A (IPv4) | 104.21.17.36 172.67.220.131 |
|---|---|
| AAAA (IPv6) | 2606:4700:3033::ac43:dc83 2606:4700:3034::6815:1124 |
www.usebarclaysimpsonstudio.com Has IPv6
| A (IPv4) | 104.21.17.36 172.67.220.131 |
|---|---|
| AAAA (IPv6) | 2606:4700:3034::6815:1124 2606:4700:3033::ac43:dc83 |
Browsers on dual-stack networks will usually pick IPv6 here (the "Happy Eyeballs" algorithm races both and prefers v6).
Permanent link: aaaa.bot/r/d4BF7y8cwk · How we measure
Checked 2026-10-30 18:03:25 UTC. Full DNS report: dns.pizza/domain/usebarclaysimpsonstudio.com · JSON: /api/v1/usebarclaysimpsonstudio.com