dns2.odramedia.pl has no CNAME records.
Question and response
Question
dig dns2.odramedia.pl. NS
Answer
The response has no answer records.
Authority
odramedia.pl. 3141 SOA dns1.odramedia.pl. admin.odramedia.pl. 2013073158 10800 2100 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0