Apex domains cannot have CNAME records.
Question and response
Question
dig consolesonline.com. NS
Answer
consolesonline.com. 5 NS ns-2025.awsdns-61.co.uk.
consolesonline.com. 5 NS ns-923.awsdns-51.net.
consolesonline.com. 5 NS ns-875.awsdns-45.net.
consolesonline.com. 5 NS ns-1838.awsdns-37.co.uk.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0