Apex domains cannot have CNAME records.
Question and response
Question
dig technewsblog.net. NS
Answer
technewsblog.net. 5 NS ns-1710.awsdns-21.co.uk.
technewsblog.net. 5 NS ns-395.awsdns-49.com.
technewsblog.net. 5 NS ns-370.awsdns-46.com.
technewsblog.net. 5 NS ns-730.awsdns-27.net.
Authority
The response has no authority records.
Additional
ns-370.awsdns-46.com. 1 A 205.251.193.114
ns-370.awsdns-46.com. 1 AAAA 2600:9000:5301:7200:0:0:0:1
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0