Apex domains cannot have CNAME records.
Question and response
Question
dig hegewischba.org. NS
Answer
hegewischba.org. 5 NS ns-1469.awsdns-55.org.
hegewischba.org. 5 NS ns-1538.awsdns-00.co.uk.
hegewischba.org. 5 NS ns-508.awsdns-63.com.
hegewischba.org. 5 NS ns-920.awsdns-51.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0