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
105.243.201.52
Netherlands
185.140.209.224
Brazil
200.231.34.18
Australia
203.22.100.10
United States of America
208.93.196.147
Russia
217.26.29.42
India
45.127.59.90
Canada
66.70.164.12
Ukraine
91.228.218.147
2a10:50c0::ad2:ff
2a0d:2a00:1::
2606:4700:4700::1111
2001:4860:4860::8844
NextDNS
45.90.30.66
OpenDns
208.67.222.222
2620:fe::fe
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