Apex domains cannot have CNAME records.
Question and response
Question
dig islamic-banners.com. NS
Answer
islamic-banners.com. 5 NS ns-267.awsdns-33.com.
islamic-banners.com. 5 NS ns-464.awsdns-58.com.
islamic-banners.com. 5 NS ns-1839.awsdns-37.co.uk.
islamic-banners.com. 5 NS ns-2034.awsdns-62.co.uk.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0