SOA records not consistent
Authoritative servers are returning different records.
- This likely indicates a DNS server configuration issue.
- Records may not have propagated among authoritative servers yet.
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
105.246.156.146
India
172.232.76.111
Netherlands
185.140.209.224
Brazil
189.56.206.90
Ukraine
194.54.82.51
Australia
203.22.100.10
Canada
24.37.219.202
United States of America
64.18.205.228
2a10:50c0::ad1:ff
185.228.168.168
2606:4700:4700::1111
8.8.8.8
NextDNS
2a07:a8c0::53:54e9
OpenDns
208.67.222.222
9.9.9.9
ruzenka.prf.cuni.cz. abuse.prf.cuni.cz. 2026032301 12000 6000 2400000 3600
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
Russia
217.26.29.42
No SOA records found