Apex domains cannot have CNAME records.
Question and response
Question
dig allkeylessentry.com. NS
Answer
allkeylessentry.com. 2 NS ns1.allkeylessentry.com.
allkeylessentry.com. 2 NS ns2.allkeylessentry.com.
Authority
The response has no authority records.
Additional
ns1.allkeylessentry.com. 2 A 188.40.246.78
ns2.allkeylessentry.com. 2 A 192.119.110.28
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0