Question and response
Question
dig bcbsf.net. NS
Answer
bcbsf.net. 3600 NS dns1.bcbsfl.com.
bcbsf.net. 3600 NS dns2.bcbsfl.com.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0