Apex domains cannot have CNAME records.
Question and response
Question
dig autosonthenet.com. NS
Answer
autosonthenet.com. 5 NS ns-889.awsdns-47.net.
autosonthenet.com. 5 NS ns-1447.awsdns-52.org.
autosonthenet.com. 5 NS ns-1817.awsdns-35.co.uk.
autosonthenet.com. 5 NS ns-653.awsdns-17.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0