Apex domains cannot have CNAME records.
Question and response
Question
dig emilsgustavs.com. NS
Answer
emilsgustavs.com. 2 NS ns-371.awsdns-46.com.
emilsgustavs.com. 2 NS ns-1161.awsdns-17.org.
emilsgustavs.com. 2 NS ns-1900.awsdns-45.co.uk.
emilsgustavs.com. 2 NS ns-2009.awsdns-59.co.uk.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0