postak.utia.cas.cz has no NS records.
NS records for this zone are defined at utia.cas.cz.
NS records for this zone are defined at utia.cas.cz.
Question and response
Question
dig postak.utia.cas.cz. NS
Answer
The response has no answer records.
Authority
utia.cas.cz. 86400 SOA visla.utia.cas.cz. root.utia.cas.cz. 11953 1440 3600 1500000 86400
Additional
. 0 OPT ; payload 1472, xrcode 0, version 0, flags 0