Apex domains cannot have CNAME records.
Question and response
Question
dig vorlentina.com. NS
Answer
vorlentina.com. 4 NS ns-1925.awsdns-48.co.uk.
vorlentina.com. 4 NS ns-1550.awsdns-01.co.uk.
vorlentina.com. 4 NS ns-446.awsdns-55.com.
vorlentina.com. 4 NS ns-986.awsdns-59.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0