Apex domains cannot have CNAME records.
Question and response
Question
dig boudemagh.org. NS
Answer
boudemagh.org. 4 NS ns2.boudemagh.org.
boudemagh.org. 4 NS ns1.boudemagh.org.
Authority
The response has no authority records.
Additional
ns1.boudemagh.org. 4 A 173.252.201.10
ns2.boudemagh.org. 4 A 74.122.196.174
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0