_acme-challenge.mxscan.saix.net. A MX RRSIG NSEC
Question and response
Question
dig mxscan.saix.net. NSEC
Answer
mxscan.saix.net. 3310 NSEC _acme-challenge.mxscan.saix.net. A MX RRSIG NSEC
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0