dns.profistroi.com has no NS records.
NS records for this zone are defined at profistroi.com.
NS records for this zone are defined at profistroi.com.
Question and response
Question
dig dns.profistroi.com. NS
Answer
The response has no answer records.
Authority
profistroi.com. 3600 SOA dns.profistroi.com. hostmaster.profistroi.com. 1654728186 43200 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0