ns2.anycastdns.cz has no NS records.
NS records for this zone are defined at anycastdns.cz.
NS records for this zone are defined at anycastdns.cz.
Question and response
Question
dig ns2.anycastdns.cz. NS
Answer
The response has no answer records.
Authority
anycastdns.cz. 1800 SOA ns1.anycastdns.cz. root.gransy.com. 2753238583 86400 900 1209600 1800
Additional
. 0 OPT ; payload 1400, xrcode 0, version 0, flags 0