dns.biltstins.com has no NS records.
NS records for this zone are defined at biltstins.com.
NS records for this zone are defined at biltstins.com.
Question and response
Question
dig dns.biltstins.com. NS
Answer
The response has no answer records.
Authority
biltstins.com. 3600 SOA dns.biltstins.com. hostmaster.biltstins.com. 1300308090 43200 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0