Has both IPv4 (A) and IPv6 (AAAA) addresses.
| Website over IPv6 nullsphere.dev has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3033::ac43:cbec answers · 443✓ 2606:4700:3035::6815:2cd6 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. faye.ns.cloudflare.com ✓harley.ns.cloudflare.com ✓ | yes |
| HTTPS over IPv6 · not part of the grade yet Loads over IPv6 with a valid certificate: HTTP 401. https://nullsphere.dev/ via 2606:4700:3033::ac43:cbec → 401 | works |
nullsphere.dev Has IPv6
| A (IPv4) | 172.67.203.236 104.21.44.214 |
|---|---|
| AAAA (IPv6) | 2606:4700:3033::ac43:cbec 2606:4700:3035::6815:2cd6 |
Browsers on dual-stack networks will usually pick IPv6 here (the "Happy Eyeballs" algorithm races both and prefers v6).
Permanent link: aaaa.bot/r/Om6KPF8vEh · How we measure
Checked 2026-11-08 16:23:04 UTC. Full DNS report: dns.pizza/domain/nullsphere.dev · Age, certificate and blocklists: how.is/nullsphere.dev · JSON: /api/v1/nullsphere.dev