Has both IPv4 (A) and IPv6 (AAAA) addresses.
| Website over IPv6 officialcb1t.buzz has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3034::6815:33ba answers · 443✓ 2606:4700:3037::ac43:b822 answers · 443 | yes |
| www over IPv6 www.officialcb1t.buzz has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3037::ac43:b822 answers · 443✓ 2606:4700:3034::6815:33ba 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. harleigh.ns.cloudflare.com ✓plato.ns.cloudflare.com ✓ | yes |
| HTTPS over IPv6 · not part of the grade yet Loads over IPv6 with a valid certificate: HTTP 403. https://officialcb1t.buzz/ via 2606:4700:3034::6815:33ba → 403 | works |
officialcb1t.buzz Has IPv6
| A (IPv4) | 104.21.51.186 172.67.184.34 |
|---|---|
| AAAA (IPv6) | 2606:4700:3034::6815:33ba 2606:4700:3037::ac43:b822 |
www.officialcb1t.buzz Has IPv6
| A (IPv4) | 172.67.184.34 104.21.51.186 |
|---|---|
| AAAA (IPv6) | 2606:4700:3037::ac43:b822 2606:4700:3034::6815:33ba |
Browsers on dual-stack networks will usually pick IPv6 here (the "Happy Eyeballs" algorithm races both and prefers v6).
Permanent link: aaaa.bot/r/vbu5JAXly_ · How we measure
Checked 2026-11-14 09:37:24 UTC. Full DNS report: dns.pizza/domain/officialcb1t.buzz · Age, certificate and blocklists: how.is/officialcb1t.buzz · JSON: /api/v1/officialcb1t.buzz