a.ns.udmvt.ru has no NS records.
NS records for this zone are defined at udmvt.ru.
NS records for this zone are defined at udmvt.ru.
Question and response
Question
dig a.ns.udmvt.ru. NS
Answer
The response has no answer records.
Authority
udmvt.ru. 3600 SOA a.ns.udmvt.ru. hostmaster.udmvt.ru. 2021101449 86400 7200 4838400 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0