cs.snt.ru has no NS records.
NS records for this zone are defined at snt.ru.
NS records for this zone are defined at snt.ru.
Question and response
Question
dig cs.snt.ru. NS
Answer
The response has no answer records.
Authority
snt.ru. 43200 SOA ns1.snt.ru. dnsmaster.sinor.ru. 2025102503 86400 7200 1209600 345600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0