Apex domains cannot have CNAME records.
Question and response
Question
dig vkoolll.net. NS
Answer
vkoolll.net. 1 NS ns-1286.awsdns-32.org.
vkoolll.net. 1 NS ns-1491.awsdns-58.org.
vkoolll.net. 1 NS ns-1398.awsdns-46.org.
vkoolll.net. 1 NS ns-1970.awsdns-54.co.uk.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0