dns1.smadm.pl has no NS records.
NS records for this zone are defined at smadm.pl.
NS records for this zone are defined at smadm.pl.
Question and response
Question
dig dns1.smadm.pl. NS
Answer
The response has no answer records.
Authority
smadm.pl. 600 SOA dns1.smadm.pl. dns2.smadm.pl. 2026022602 1800 600 1209600 14400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0