Apex domains cannot have CNAME records.
Question and response
Question
dig hazuhazu.net. NS
Answer
hazuhazu.net. 5 NS ns-559.awsdns-05.net.
hazuhazu.net. 5 NS ns-1779.awsdns-30.co.uk.
hazuhazu.net. 5 NS ns-1901.awsdns-45.co.uk.
hazuhazu.net. 5 NS ns-227.awsdns-28.com.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0