Apex domains cannot have CNAME records.
Question and response
Question
dig dossier-info.com. NS
Answer
dossier-info.com. 5 NS ns-151.awsdns-18.com.
dossier-info.com. 5 NS ns-902.awsdns-48.net.
dossier-info.com. 5 NS ns-683.awsdns-21.net.
dossier-info.com. 5 NS ns-328.awsdns-41.com.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0