Has both IPv4 (A) and IPv6 (AAAA) addresses.
| Website over IPv6 thebarclaysimpsonlabs.com has an AAAA record and answers on it. | yes |
| www over IPv6 www.thebarclaysimpsonlabs.com has an AAAA record and answers on it. | 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. fonzie.ns.cloudflare.com ✓jill.ns.cloudflare.com ✓ | yes |
thebarclaysimpsonlabs.com Has IPv6
| A (IPv4) | 104.21.72.217 172.67.155.159 |
|---|---|
| AAAA (IPv6) | 2606:4700:3032::ac43:9b9f 2606:4700:3031::6815:48d9 |
www.thebarclaysimpsonlabs.com Has IPv6
| A (IPv4) | 104.21.72.217 172.67.155.159 |
|---|---|
| AAAA (IPv6) | 2606:4700:3031::6815:48d9 2606:4700:3032::ac43:9b9f |
Browsers on dual-stack networks will usually pick IPv6 here (the "Happy Eyeballs" algorithm races both and prefers v6).
Checked 2026-10-30 14:52:15 UTC. Full DNS report: dns.pizza/domain/thebarclaysimpsonlabs.com · JSON: /api/v1/thebarclaysimpsonlabs.com