Question and response
Question
dig unknown.servernap.com. NSEC3
Answer
The response has no answer records.
Authority
servernap.com. 3600 SOA ns1.servernap.com. hostmaster.servernap.com. 2021120800 3600 900 604800 86400
Additional
. 0 OPT ; payload 1680, xrcode 0, version 0, flags 0