ns1.site.pro has no NS records.
NS records for this zone are defined at site.pro.
NS records for this zone are defined at site.pro.
Question and response
Question
dig ns1.site.pro. NS
Answer
The response has no answer records.
Authority
site.pro. 300 SOA ns1.site.pro. support.site.pro. 2026031002 1200 300 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0