Apex domains cannot have CNAME records.
Question and response
Question
dig 360video360.com. NS
Answer
360video360.com. 5 NS ns-549.awsdns-04.net.
360video360.com. 5 NS ns-257.awsdns-32.com.
360video360.com. 5 NS ns-427.awsdns-53.com.
360video360.com. 5 NS ns-744.awsdns-29.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0