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DNSViz

A DNS visualization tool

nic.cz

DNS Server Status
NoticeNotice: The features on this page are not yet fully developed but it has been deployed in its infant form to further aid with DNS/DNSSEC troubleshooting. This page will be updated in due time to make it more useful for troubleshooting.

Delegation Information

NameParent zoneChild zone
Exists?Glue/additional recordsExists?
a.ns.nic.czyesA 194.0.12.1yes
AAAA2001:678:f::1
b.ns.nic.czyesA 194.0.13.1yes
AAAA2001:678:10::1
d.ns.nic.czyesA 193.29.206.1yes
AAAA2001:678:1::1

Server information

194.0.13.1194.0.12.1193.29.206.12001:678:10::12001:678:f::12001:678:1::1
Responsive over UDPOKOKOKOKOKOK
Responsive over TCPOKOKOK
Answers authoritatively (AA bit)OKOKOKOKOKOK
SOA serial consistentOKOKOKOKOKOK
SOA authority correct (NXDOMAIN)OKOKOKOKOKOK
SOA consistent (NXDOMAIN)OKOKOKOKOKOK
SOA authority correct (Empty Answer)OKOKOKOKOKOK
SOA consistent (Empty Answer)OKOKOKOKOKOK
EDNS capableOKOKOKOKOKOK
PMTU sufficientOKOKOKOKOKOK
Returns DNSKEYOKOKOKOKOKOK
Returns RRSIGOKOKOKOKOKOK
Returns NSEC/NSEC3 (NXDOMAIN)OKOKOKOKOKOK
Returns RRSIG covering NSEC/NSEC3 (NXDOMAIN)OKOKOKOKOKOK
Returns NSEC/NSEC3 (Empty Answer)OKOKOKOKOKOK
Returns RRSIG covering NSEC/NSEC3 (Empty Answer)OKOKOKOKOKOK