Apex domains cannot have CNAME records.
Question and response
Question
dig jdj-trading.com. NS
Answer
jdj-trading.com. 5 NS ns2.jdj-trading.com.
jdj-trading.com. 5 NS ns1.jdj-trading.com.
Authority
The response has no authority records.
Additional
ns1.jdj-trading.com. 5 A 45.82.65.57
ns2.jdj-trading.com. 5 A 45.82.65.59
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0