Apex domains cannot have CNAME records.
Question and response
Question
dig d1ql8jvt1yyi4j.cloudfront.net. NS
Answer
d1ql8jvt1yyi4j.cloudfront.net. 5 NS ns-1523.awsdns-62.org.
d1ql8jvt1yyi4j.cloudfront.net. 5 NS ns-844.awsdns-41.net.
d1ql8jvt1yyi4j.cloudfront.net. 5 NS ns-341.awsdns-42.com.
d1ql8jvt1yyi4j.cloudfront.net. 5 NS ns-1645.awsdns-13.co.uk.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0