Apex domains cannot have CNAME records.
Question and response
Question
dig cines.fr. NS
Answer
cines.fr. 5 NS nc1-fi0.cines.fr.
cines.fr. 5 NS cnudns.cines.fr.
cines.fr. 5 NS ciripa.idris.fr.
Authority
The response has no authority records.
Additional
ciripa.idris.fr. 5 A 130.84.32.8
cnudns.cines.fr. 5 A 193.48.169.40
nc1-fi0.cines.fr. 5 A 195.83.180.9
cnudns.cines.fr. 5 AAAA 2001:660:6301:301:0:0:2:1
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0