uw.edu.pl has no NS records.
NS records for this zone are defined at edu.pl.
NS records for this zone are defined at edu.pl.
Question and response
Question
dig uw.edu.pl. NS
Answer
The response has no answer records.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0