Apex domains cannot have CNAME records.
Question and response
Question
dig hkhljks.com. NS
Answer
hkhljks.com. 4 NS ns-704.awsdns-24.net.
hkhljks.com. 4 NS ns-540.awsdns-03.net.
hkhljks.com. 4 NS ns-44.awsdns-05.com.
hkhljks.com. 4 NS ns-1975.awsdns-54.co.uk.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0