Question and response
Question
dig ns2.9rcorp.com. NS
Answer
ns2.9rcorp.com. 5 CNAME 9rcorp.com.
9rcorp.com. 5 NS ns1.9rcorp.com.
9rcorp.com. 5 NS ns2.9rcorp.com.
Authority
The response has no authority records.
Additional
ns1.9rcorp.com. 5 A 51.254.84.91
ns2.9rcorp.com. 5 A 80.96.197.52
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0