Apex domains cannot have CNAME records.
Question and response
Question
dig euro-web.com. NS
Answer
euro-web.com. 1 NS ns2.magic.fr.
euro-web.com. 1 NS ns.magic.fr.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0