A records not consistent
Authoritative servers are returning different records.
- This is normal for A records — they can be geo- or round-robin load-balanced.
- If this is not intentional, check your DNS server configuration.
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
India
119.161.98.202
Australia
123.100.147.201
United States of America
162.243.12.37
Netherlands
185.83.216.49
Brazil
200.231.34.18
South Africa
41.23.113.105
Ukraine
45.140.123.250
Russia
46.138.240.213
Canada
50.21.174.242
94.140.14.14
185.228.169.168
1.1.1.1
8.8.8.8
NextDNS
2a07:a8c0::53:54e9
OpenDns
208.67.222.222
2620:fe::9
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
No A records found