Has both IPv4 (A) and IPv6 (AAAA) addresses.
| Website over IPv6 ssmzfs.com has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3037::6815:4f5c answers · 443✓ 2606:4700:3030::ac43:8f0d answers · 443 | yes |
| www over IPv6 www.ssmzfs.com has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3030::ac43:8f0d answers · 443✓ 2606:4700:3037::6815:4f5c 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. alexandra.ns.cloudflare.com ✓clint.ns.cloudflare.com ✓ | yes |
| HTTPS over IPv6 · not part of the grade yet Loads over IPv6 with a valid certificate: HTTP 403. https://ssmzfs.com/ via 2606:4700:3037::6815:4f5c → 403 | works |
ssmzfs.com Has IPv6
| A (IPv4) | 104.21.79.92 172.67.143.13 |
|---|---|
| AAAA (IPv6) | 2606:4700:3037::6815:4f5c 2606:4700:3030::ac43:8f0d |
www.ssmzfs.com Has IPv6
| A (IPv4) | 172.67.143.13 104.21.79.92 |
|---|---|
| AAAA (IPv6) | 2606:4700:3030::ac43:8f0d 2606:4700:3037::6815:4f5c |
Browsers on dual-stack networks will usually pick IPv6 here (the "Happy Eyeballs" algorithm races both and prefers v6).
Permanent link: aaaa.bot/r/za2YcfqPrZ · How we measure
Checked 2026-11-06 23:12:46 UTC. Full DNS report: dns.pizza/domain/ssmzfs.com · Age, certificate and blocklists: how.is/ssmzfs.com · JSON: /api/v1/ssmzfs.com