vm3.cvf.cz has no NS records.
NS records for this zone are defined at cvf.cz.
NS records for this zone are defined at cvf.cz.
Question and response
Question
dig vm3.cvf.cz. NS
Answer
The response has no answer records.
Authority
cvf.cz. 300 SOA ns.satoya.cz. hostmaster.satoya.cz. 2026031201 28800 3600 1209600 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0