Apex domains cannot have CNAME records.
Question and response
Question
dig shoppingadventure.fr. NS
Answer
shoppingadventure.fr. 5 NS dns03.prod02.kbrw.fr.
shoppingadventure.fr. 5 NS dns01.cloud.kbrwadventure.com.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0