test090518.awk.jp has no CNAME records.
Question and response
Question
dig test090518.awk.jp. NS
Answer
The response has no answer records.
Authority
The response has no authority records.
Additional
. 0 OPT [{Extended_DNS_Error: NO_REACHABLE_AUTHORITY}] ; payload 1232, xrcode 0, version 0, flags 0