Apex domains cannot have CNAME records.
Question and response
Question
dig torenulima.com. NS
Answer
torenulima.com. 5 NS ns-1782.awsdns-30.co.uk.
torenulima.com. 5 NS ns-551.awsdns-04.net.
torenulima.com. 5 NS ns-1519.awsdns-61.org.
torenulima.com. 5 NS ns-1937.awsdns-50.co.uk.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0