Apex domains cannot have CNAME records.
Question and response
Question
dig multiscreensite.com. NS
Answer
multiscreensite.com. 5 NS ns-1042.awsdns-02.org.
multiscreensite.com. 5 NS ns-425.awsdns-53.com.
multiscreensite.com. 5 NS ns-687.awsdns-21.net.
multiscreensite.com. 5 NS ns-1867.awsdns-41.co.uk.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0