Apex domains cannot have CNAME records.
Question and response
Question
dig derya-makine.com. NS
Answer
derya-makine.com. 5 NS ns-814.awsdns-37.net.
derya-makine.com. 5 NS ns-1734.awsdns-24.co.uk.
derya-makine.com. 5 NS ns-1006.awsdns-61.net.
derya-makine.com. 5 NS ns-1864.awsdns-41.co.uk.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0