Apex domains cannot have CNAME records.
Question and response
Question
dig top-tech-news.com. NS
Answer
top-tech-news.com. 5 NS ns2.top-tech-news.com.
top-tech-news.com. 5 NS ns1.top-tech-news.com.
Authority
The response has no authority records.
Additional
ns1.top-tech-news.com. 5 A 70.32.1.178
ns2.top-tech-news.com. 5 A 170.130.227.237
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0