www.gtsbezpecnyinternet.cz has no NS records.
NS records for this zone are defined at gtsbezpecnyinternet.cz.
NS records for this zone are defined at gtsbezpecnyinternet.cz.
Question and response
Question
dig www.gtsbezpecnyinternet.cz. NS
Answer
The response has no answer records.
Authority
gtsbezpecnyinternet.cz. 86400 SOA ns1.gts.cz. hostmaster.cz.net. 2012083000 28800 7200 604800 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0