Has both IPv4 (A) and IPv6 (AAAA) addresses.
| Website over IPv6 us2-zoom.quest has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3033::6815:5432 answers · 443✓ 2606:4700:3033::ac43:ba91 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. ajay.ns.cloudflare.com ✓iris.ns.cloudflare.com ✓ | yes |
| HTTPS over IPv6 · not part of the grade yet Loads over IPv6 with a valid certificate after 1 redirect: HTTP 403. https://us2-zoom.quest/ via 2606:4700:3033::6815:5432 → 302https://www.webex.com/ via 2600:1408:5400:e98::77 → 403 | works |
us2-zoom.quest Has IPv6
| A (IPv4) | 104.21.84.50 172.67.186.145 |
|---|---|
| AAAA (IPv6) | 2606:4700:3033::6815:5432 2606:4700:3033::ac43:ba91 |
Browsers on dual-stack networks will usually pick IPv6 here (the "Happy Eyeballs" algorithm races both and prefers v6).
Permanent link: aaaa.bot/r/wRGpNyHhT6 · How we measure
Checked 2026-11-13 01:36:03 UTC. Full DNS report: dns.pizza/domain/us2-zoom.quest · Age, certificate and blocklists: how.is/us2-zoom.quest · JSON: /api/v1/us2-zoom.quest