Question and response
Question
dig ns4.cdnsun.net. NSEC
Answer
The response has no answer records.
Authority
cdnsun.net. 180 SOA cdnsun.net. hostmaster.worldcdn.com. 1772567158 1200 180 1209600 180
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0