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 cuni.cz .
managed by the owner of cuni.cz .
david.ruk.cuni.cz
78.128.213.242
The official source of information for this domain,
managed by the owner of cuni.cz .
managed by the owner of cuni.cz .
golias.ruk.cuni.cz
195.113.0.2
South Africa
105.243.205.120
Australia
123.100.147.201
United States of America
162.243.12.37
India
172.232.76.111
Netherlands
185.173.235.98
Ukraine
194.54.82.50
Brazil
200.231.34.18
Canada
50.21.174.242
Russia
90.156.226.142
2a10:50c0::ad2:ff
2a0d:2a00:1::
1.1.1.1
2001:4860:4860::8888
NextDNS
2a07:a8c0::53:54e9
OpenDns
208.67.222.222
9.9.9.9
The official source of information for this domain,
managed by the owner of cuni.cz .
managed by the owner of cuni.cz .
cuce.ruk.cuni.cz
195.113.0.8
The official source of information for this domain,
managed by the owner of cuni.cz .
managed by the owner of cuni.cz .
nsa.ces.net
195.113.144.205
No A records found