Test of halo.havel.cz
F
Detailed results
DNS servers
The domain has at least some of its DNS servers accessible over IPv6. That is grade B.
halo.havel.cz
- ✓ ns.forpsi.us [2a00:6d41:2:1::5]
- ✓ ns.forpsi.net [2001:15e8:101:1::c282]
- ✗ ns.forpsi.cn [no IPv6]
- ✓ ns.forpsi.cz [2001:15e8:201:1::d1b9]
Web servers
Website without IPv6. That is grade E/F.
E-mail servers
E-mail servers without IPv6. That is grade E/F.
- ✗ mxavas.forpsi.com [no IPv6]
Last tests
| Test date | Grade |
|---|---|
| 4 May 2026 11:30 | F |