Has both IPv4 (A) and IPv6 (AAAA) addresses.
| Website over IPv6 hstv3.work has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3037::6815:690 answers · 443✓ 2606:4700:3031::ac43:9b27 answers · 443 | yes |
| www over IPv6 www.hstv3.work has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3031::ac43:9b27 answers · 443✓ 2606:4700:3037::6815:690 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. robert.ns.cloudflare.com ✓teagan.ns.cloudflare.com ✓ | yes |
| HTTPS over IPv6 · not part of the grade yet Loads over IPv6 with a valid certificate: HTTP 403. https://hstv3.work/ via 2606:4700:3037::6815:690 → 403 | works |
hstv3.work Has IPv6
| A (IPv4) | 104.21.6.144 172.67.155.39 |
|---|---|
| AAAA (IPv6) | 2606:4700:3037::6815:690 2606:4700:3031::ac43:9b27 |
www.hstv3.work Has IPv6
| A (IPv4) | 172.67.155.39 104.21.6.144 |
|---|---|
| AAAA (IPv6) | 2606:4700:3031::ac43:9b27 2606:4700:3037::6815:690 |
Browsers on dual-stack networks will usually pick IPv6 here (the "Happy Eyeballs" algorithm races both and prefers v6).
Permanent link: aaaa.bot/r/ayIOrZpX8d · How we measure
Checked 2026-11-10 15:24:21 UTC. Full DNS report: dns.pizza/domain/hstv3.work · Age, certificate and blocklists: how.is/hstv3.work · JSON: /api/v1/hstv3.work