dg7vdtfrctrw.mail.gtnet.ru has no NS records.
NS records for this zone are defined at gtnet.ru.
NS records for this zone are defined at gtnet.ru.
Question and response
Question
dig gv-z66hkizbylsnx6.dv.googlehosted.com. NS
Answer
The response has no answer records.
Authority
dv.googlehosted.com. 60 SOA ns1.google.com. dns-admin.google.com. 885488807 900 900 1800 60
Additional
. 0 OPT ; payload 512, xrcode 0, version 0, flags 0