Apex domains cannot have CNAME records.
Question and response
Question
dig wiline.com. NS
Answer
wiline.com. 5 NS ns1.wiline.com.
wiline.com. 5 NS ns3.wiline.com.
wiline.com. 5 NS ns2.wiline.com.
Authority
The response has no authority records.
Additional
ns1.wiline.com. 5 A 64.71.0.59
ns2.wiline.com. 5 A 67.207.98.235
ns3.wiline.com. 5 A 199.195.213.180
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0