Test of balikovna.cz
F
Detailed results
DNS servers
The domain has all its DNS servers accessible over IPv6, great!
balikovna.cz
- ✓ ns2.websupport.cz [2a02:250:3::12]
- ✓ ns3.websupport.eu [2a10:bbc0::13]
- ✓ ns1.websupport.cz [2a10:bbc0::11]
Web servers
Website without IPv6. That is grade E/F.
E-mail servers
E-mail servers without IPv6. That is grade E/F.
- ✗ smtp03.cpost.cz [no IPv6]
- ✗ smtp04.cpost.cz [no IPv6]
- ✗ smtp01.cpost.cz [no IPv6]
- ✗ smtp02.cpost.cz [no IPv6]
Last tests
| Test date | Grade |
|---|---|
| 12 Jan 2026 23:29 | F |