_spf1cupis.fon.bet has no NS records.
NS records for this zone are defined at fon.bet.
NS records for this zone are defined at fon.bet.
Question and response
Question
dig _spf1cupis.fon.bet. NS
Answer
The response has no answer records.
Authority
fon.bet. 300 SOA ns1.edgedns.ru. support.edgecenter.ru. 1774370527 5400 3600 1209600 300
Additional
. 0 OPT ; payload 1280, xrcode 0, version 0, flags 0