Apex domains cannot have CNAME records.
Question and response
Question
dig nemalaplus.net. NS
Answer
NemalaPlus.net. 3 NS pdns.binat.net.il.
NemalaPlus.net. 3 NS dns-slave1.binat.net.il.
NemalaPlus.net. 3 NS dns-tdns1.binat.net.il.
NemalaPlus.net. 3 NS dns-slave2.binat.net.il.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0