Has both IPv4 (A) and IPv6 (AAAA) addresses.
| Website over IPv6 kordon.tech has an AAAA record and answers on it. ✓ 2a03:6f02::1:77f2 answers · 443 | yes |
| www over IPv6 www.kordon.tech has an AAAA record and answers on it. ✓ 2a03:6f02::1:77f2 answers · 443 | yes |
| Mail servers (MX) have IPv6 Every mail server has an AAAA record. mx1.timeweb.ru ✓mx2.timeweb.ru ✓ | yes |
| Nameservers have IPv6 2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. monroe.ns.cloudflare.com ✓santino.ns.cloudflare.com ✓ | yes |
| HTTPS over IPv6 · not part of the grade yet Redirects to efimovdev.ru, which has no IPv6 address — so IPv6 visitors end up needing IPv4 after all. https://kordon.tech/ via 2a03:6f02::1:77f2 → 301https://efimovdev.ru/kordon/ · redirects to efimovdev.ru, which has no IPv6 address | problem |
kordon.tech Has IPv6
| A (IPv4) | 82.97.246.107 |
|---|---|
| AAAA (IPv6) | 2a03:6f02::1:77f2 |
www.kordon.tech Has IPv6
| A (IPv4) | 82.97.246.107 |
|---|---|
| AAAA (IPv6) | 2a03:6f02::1:77f2 |
Browsers on dual-stack networks will usually pick IPv6 here (the "Happy Eyeballs" algorithm races both and prefers v6).
Permanent link: aaaa.bot/r/N0FAT7wwoq · How we measure
Checked 2026-11-07 20:20:11 UTC. Full DNS report: dns.pizza/domain/kordon.tech · Age, certificate and blocklists: how.is/kordon.tech · JSON: /api/v1/kordon.tech