Apex domains cannot have CNAME records.
Question and response
Question
dig quickscreentrading.com. NS
Answer
quickscreentrading.com. 5 NS a.ns.quickscreentrading.com.
quickscreentrading.com. 5 NS b.ns.quickscreentrading.com.
Authority
The response has no authority records.
Additional
a.ns.quickscreentrading.com. 5 A 38.126.22.26
b.ns.quickscreentrading.com. 5 A 216.86.148.180
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0