Question and response
Question
dig spfext.spf.ksc.net. NSEC3PARAM
Answer
The response has no answer records.
Authority
spf.ksc.net. 3600 SOA ns2.ksc.net. hostmaster.ns.ksc.co.th. 2019122417 3600 900 604800 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0