proxy.interkar.pl has no NS records.
NS records for this zone are defined at interkar.pl.
NS records for this zone are defined at interkar.pl.
Question and response
Question
dig proxy.interkar.pl. NS
Answer
The response has no answer records.
Authority
interkar.pl. 86400 SOA ns1.interkar.pl. hostmaster.interkar.pl. 2011092501 1200 400 2419200 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0