Apex domains cannot have CNAME records.
Question and response
Question
dig d8ftl95m2rl0w.cloudfront.net. NS
Answer
d8ftl95m2rl0w.cloudfront.net. 5 NS ns-902.awsdns-48.net.
d8ftl95m2rl0w.cloudfront.net. 5 NS ns-230.awsdns-28.com.
d8ftl95m2rl0w.cloudfront.net. 5 NS ns-1874.awsdns-42.co.uk.
d8ftl95m2rl0w.cloudfront.net. 5 NS ns-1295.awsdns-33.org.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0