Apex domains cannot have CNAME records.
Question and response
Question
dig cgitrade360.com. NS
Answer
cgitrade360.com. 1 NS ns1.f5clouddns.com.
cgitrade360.com. 1 NS ns1.bluecatdns.org.
cgitrade360.com. 1 NS ns1.bluecatdns.com.
cgitrade360.com. 1 NS ns.cgi.com.
cgitrade360.com. 1 NS ns1.bluecatdns.net.
cgitrade360.com. 1 NS ns2.f5clouddns.com.
cgitrade360.com. 1 NS ns.cgi.ca.
Authority
The response has no authority records.
Additional
ns1.f5clouddns.com. 1 A 107.162.234.197
ns2.f5clouddns.com. 1 A 107.162.176.221
ns1.f5clouddns.com. 1 AAAA 2604:e180:1071:0:0:0:3:1
ns2.f5clouddns.com. 1 AAAA 2604:e180:1071:0:0:ffff:6ba2:b0dd
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0