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
105.243.178.121
Australia
123.100.147.201
Canada
142.93.159.38
United States of America
162.243.60.46
India
172.232.76.111
Ukraine
193.150.122.241
Brazil
200.231.34.18
Russia
217.26.29.42
Netherlands
95.85.32.8
2a10:50c0::ad2:ff
2a0d:2a00:2::
2606:4700:4700::1111
2001:4860:4860::8888
NextDNS
45.90.28.66
OpenDns
2620:119:35::35
149.112.112.112
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