Question and response
Question
dig c.ns.facebook.com. AAAA
Answer
c.ns.facebook.com. 172800 AAAA 2a03:2880:f1fc:c:face:b00c:0:35
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0