RRSIG records not consistent
Authoritative servers are returning different records.
- This likely indicates a DNS server configuration issue.
- Records may not have propagated among authoritative servers yet.
DNS server
TTL
Time To Live
The amount of time a DNS record is cached for.
Records returned by these servers
The official source of information for this domain,
managed by the owner of cas.cz .
managed by the owner of cas.cz .
academy.cas.cz
147.231.58.1
The official source of information for this domain,
managed by the owner of cas.cz .
managed by the owner of cas.cz .
visla.utia.cas.cz
147.231.12.1
South Africa
105.243.201.161
Australia
139.99.130.220
United States of America
143.244.171.146
India
172.232.76.111
Netherlands
185.140.209.224
Ukraine
91.239.232.181
94.140.14.14
2606:4700:4700::1111
2001:4860:4860::8888
NextDNS
45.90.30.66
NSEC 13 4 600 20260407061557 20260308051905 35489 kav.cas.cz. Pun/lqeuir1/0bvq9ZcNhNAlItIKxRMu9mYTyYobz7bY3Bkf9kGiL5S9vpaTBVY+vGpcif5XqyPo3wywbxiNWQ==
A 13 4 600 20260429153835 20260330145602 35489 kav.cas.cz. orZwh+RWbbh/ctBoUVsbMIzfNZbPFjT2da00rPS76OPWwQ/m4jJvbXRNdBGS6DqlHjTMrLJ0Ngv6u+SUsZQMOw==
The official source of information for this domain,
managed by the owner of cas.cz .
managed by the owner of cas.cz .
nsa.ces.net
195.113.144.205
Brazil
177.137.64.23
Russia
217.26.29.42
2a0d:2a00:1::
OpenDns
2620:119:53::53
2620:fe::fe
No RRSIG records found
Canada
66.70.164.12
NSEC 13 4 600 20260407061557 20260308051905 35489 kav.cas.cz. Pun/lqeuir1/0bvq9ZcNhNAlItIKxRMu9mYTyYobz7bY3Bkf9kGiL5S9vpaTBVY+vGpcif5XqyPo3wywbxiNWQ==