Apex domains cannot have CNAME records.
Question and response
Question
dig eryamanarcelikservisim.com. NS
Answer
eryamanarcelikservisim.com. 5 NS ns2.eryamanarcelikservisim.com.
eryamanarcelikservisim.com. 5 NS ns1.eryamanarcelikservisim.com.
Authority
The response has no authority records.
Additional
ns1.eryamanarcelikservisim.com. 5 A 134.119.220.178
ns2.eryamanarcelikservisim.com. 5 A 134.119.220.180
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0