Test of www.384.cz
E
Detailed results
DNS servers
The domain has at least some of its DNS servers accessible over IPv6. That is grade B.
www.384.cz
- ✗ ns1.dynv6.com [2a01:4f9:c010:95b::] (does not resolve the domain)
- ✓ ns2.dynv6.com [2a03:4000:6:569::]
- ✓ ns3.dynv6.com [2a01:4f8:1c1c:4c96::]
Web servers
Website without IPv6. That is grade E/F.
E-mail servers
E-mails are deliverable over IPv6, great!
- ✓ a26d5330d39ba6ba.mx1.emailprofi.seznam.cz [2a02:598:2::1056]
- ✓ a26d5330d39ba6ba.mx2.emailprofi.seznam.cz [2a02:598:2::1146]
Last tests
| Test date | Grade |
|---|---|
| 27 Jun 2025 11:09 | failure |
| 19 Jun 2025 9:23 | E |