Apex domains cannot have CNAME records.
Question and response
Question
dig moulinstandre.com. NS
Answer
moulinstandre.com. 5 NS ns-797.awsdns-35.net.
moulinstandre.com. 5 NS ns-530.awsdns-02.net.
moulinstandre.com. 5 NS ns-22.awsdns-02.com.
moulinstandre.com. 5 NS ns-1387.awsdns-45.org.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0