Has both IPv4 (A) and IPv6 (AAAA) addresses.
This is a saved measurement from 2026-11-03 08:38 UTC. Check ionoss.icu live now
| Website over IPv6 ionoss.icu has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3037::6815:1af6 answers · 443✓ 2606:4700:3035::ac43:8bad answers · 443 | yes |
| www over IPv6 www.ionoss.icu has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3037::6815:1af6 answers · 443✓ 2606:4700:3035::ac43:8bad 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. jack.ns.cloudflare.com ✓liv.ns.cloudflare.com ✓ | yes |
| HTTPS over IPv6 · not part of the grade yet Loads over IPv6 with a valid certificate: HTTP 403. https://ionoss.icu/ via 2606:4700:3037::6815:1af6 → 403 | works |
ionoss.icu Has IPv6
| A (IPv4) | 104.21.26.246 172.67.139.173 |
|---|---|
| AAAA (IPv6) | 2606:4700:3037::6815:1af6 2606:4700:3035::ac43:8bad |
www.ionoss.icu Has IPv6
| A (IPv4) | 172.67.139.173 104.21.26.246 |
|---|---|
| AAAA (IPv6) | 2606:4700:3037::6815:1af6 2606:4700:3035::ac43:8bad |
Browsers on dual-stack networks will usually pick IPv6 here (the "Happy Eyeballs" algorithm races both and prefers v6).
Permanent link: aaaa.bot/r/6jzlTRuIBH · How we measure
Checked 2026-11-03 08:38:06 UTC. Full DNS report: dns.pizza/domain/ionoss.icu · Age, certificate and blocklists: how.is/ionoss.icu · JSON: /api/v1/ionoss.icu