\000.mx.zctracker.com. A TXT AAAA RRSIG NSEC SPF CAA
Question and response
Question
dig mx.zctracker.com. NSEC
Answer
mx.zctracker.com. 600 NSEC \000.mx.zctracker.com. A TXT AAAA RRSIG NSEC SPF CAA
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1280, xrcode 0, version 0, flags 0