dns.shiftbitsleft.com has no NS records.
NS records for this zone are defined at shiftbitsleft.com.
NS records for this zone are defined at shiftbitsleft.com.
Question and response
Question
dig dns.shiftbitsleft.com. NS
Answer
The response has no answer records.
Authority
shiftbitsleft.com. 3600 SOA dns.shiftbitsleft.com. hostmaster.shiftbitsleft.com. 1970188864 43200 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0