Test of www.idsjmk.cz
E
Detailed results
DNS servers
The domain has all its DNS servers accessible over IPv6, great!
www.idsjmk.cz
- ✓ ns3.websupport.eu [2a10:bbc0::13] → d1ryge4xy2o4tm.cloudfront.net
- ✓ ns1.websupport.cz [2a10:bbc0::11] → d1ryge4xy2o4tm.cloudfront.net
- ✓ ns2.websupport.cz [2a02:250:3::12] → d1ryge4xy2o4tm.cloudfront.net
d1ryge4xy2o4tm.cloudfront.net
- ✓ ns-1568.awsdns-04.co.uk [2600:9000:5306:2000::1]
- ✓ ns-425.awsdns-53.com [2600:9000:5301:a900::1]
- ✓ ns-536.awsdns-03.net [2600:9000:5302:1800::1]
- ✓ ns-1162.awsdns-17.org [2600:9000:5304:8a00::1]
Web servers
The website is accessible over IPv6, great!
- ✓ 2600:9000:207f:8400:19:6592:1a80:93a1
- ✓ 2600:9000:207f:ac00:19:6592:1a80:93a1
- ✓ 2600:9000:207f:dc00:19:6592:1a80:93a1
- ✓ 2600:9000:207f:f600:19:6592:1a80:93a1
- ✓ 2600:9000:207f:2800:19:6592:1a80:93a1
- ✓ 2600:9000:207f:3e00:19:6592:1a80:93a1
- ✓ 2600:9000:207f:5000:19:6592:1a80:93a1
- ✓ 2600:9000:207f:7e00:19:6592:1a80:93a1
E-mail servers
E-mail servers without IPv6. That is grade E/F.
- ✗ mail.kordis-jmk.cz [no IPv6]
Last tests
| Test date | Grade |
|---|---|
| 25 Sep 2026 7:37 | E |