Has both IPv4 (A) and IPv6 (AAAA) addresses.
| Website over IPv6 zyzhongzhu.com has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3033::ac43:c9f5 answers · 443✓ 2606:4700:3034::6815:3ce1 answers · 443 | yes |
| www over IPv6 www.zyzhongzhu.com has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3033::ac43:c9f5 answers · 443✓ 2606:4700:3034::6815:3ce1 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. gwen.ns.cloudflare.com ✓syeef.ns.cloudflare.com ✓ | yes |
| HTTPS over IPv6 · not part of the grade yet Loads over IPv6 with a valid certificate: HTTP 403. https://zyzhongzhu.com/ via 2606:4700:3033::ac43:c9f5 → 403 | works |
zyzhongzhu.com Has IPv6
| A (IPv4) | 104.21.60.225 172.67.201.245 |
|---|---|
| AAAA (IPv6) | 2606:4700:3033::ac43:c9f5 2606:4700:3034::6815:3ce1 |
www.zyzhongzhu.com Has IPv6
| A (IPv4) | 172.67.201.245 104.21.60.225 |
|---|---|
| AAAA (IPv6) | 2606:4700:3033::ac43:c9f5 2606:4700:3034::6815:3ce1 |
Browsers on dual-stack networks will usually pick IPv6 here (the "Happy Eyeballs" algorithm races both and prefers v6).
Permanent link: aaaa.bot/r/kp78a8c9pP · How we measure
Checked 2026-11-14 00:03:40 UTC. Full DNS report: dns.pizza/domain/zyzhongzhu.com · Age, certificate and blocklists: how.is/zyzhongzhu.com · JSON: /api/v1/zyzhongzhu.com