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 mff.cuni.cz .
managed by the owner of mff.cuni.cz .
david.ruk.cuni.cz
78.128.213.242
The official source of information for this domain,
managed by the owner of mff.cuni.cz .
managed by the owner of mff.cuni.cz .
golias.ruk.cuni.cz
195.113.0.2
India
182.156.93.102
Netherlands
185.140.209.224
Russia
188.126.58.120
Brazil
200.231.34.18
Australia
203.22.100.10
United States of America
208.93.196.147
South Africa
41.23.113.46
Canada
66.70.164.12
Ukraine
91.239.232.181
2a10:50c0::ad1:ff
185.228.169.168
2606:4700:4700::1001
8.8.4.4
NextDNS
2a07:a8c0::53:54e9
OpenDns
2620:119:35::35
149.112.112.112
The official source of information for this domain,
managed by the owner of mff.cuni.cz .
managed by the owner of mff.cuni.cz .
ns.ms.mff.cuni.cz
195.113.20.71
The official source of information for this domain,
managed by the owner of mff.cuni.cz .
managed by the owner of mff.cuni.cz .
ns.n.mff.cuni.cz
195.113.16.2
The official source of information for this domain,
managed by the owner of mff.cuni.cz .
managed by the owner of mff.cuni.cz .
sns.ms.mff.cuni.cz
195.113.20.77
No A records found