aws.techbriefsmediagroup.com has no NS records.
NS records for this zone are defined at techbriefsmediagroup.com.
NS records for this zone are defined at techbriefsmediagroup.com.
Question and response
Question
dig aws.techbriefsmediagroup.com. NS
Answer
The response has no answer records.
Authority
techbriefsmediagroup.com. 900 SOA ns-986.awsdns-59.net. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0