Apex domains cannot have CNAME records.
Question and response
Question
dig easydata-online.com. NS
Answer
easydata-online.com. 3 NS ns1.easydata-online.com.
easydata-online.com. 3 NS ns2.easydata-online.com.
Authority
The response has no authority records.
Additional
ns1.easydata-online.com. 3 A 15.204.144.193
ns2.easydata-online.com. 3 A 51.79.11.12
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0