Apex domains cannot have CNAME records.
Question and response
Question
dig radicoremedies.com. NS
Answer
radicoremedies.com. 5 NS ns-249.awsdns-31.com.
radicoremedies.com. 5 NS ns-1244.awsdns-27.org.
radicoremedies.com. 5 NS ns-828.awsdns-39.net.
radicoremedies.com. 5 NS ns-347.awsdns-43.com.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0