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
South Africa
105.243.201.123
India
154.206.18.234
Netherlands
185.140.209.224
Brazil
200.231.34.18
Australia
203.22.100.10
United States of America
208.93.196.147
Russia
46.138.240.213
Canada
68.183.201.168
Ukraine
91.239.232.181
94.140.15.15
185.228.168.168
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 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