Apex domains cannot have CNAME records.
Question and response
Question
dig completewildlife.com. NS
Answer
completewildlife.com. 3 NS ns-407.awsdns-50.com.
completewildlife.com. 3 NS ns-1025.awsdns-00.org.
completewildlife.com. 3 NS ns-1597.awsdns-07.co.uk.
completewildlife.com. 3 NS ns-1730.awsdns-24.co.uk.
Authority
The response has no authority records.
Additional
ns-1597.awsdns-07.co.uk. 4 A 205.251.198.61
ns-1597.awsdns-07.co.uk. 4 AAAA 2600:9000:5306:3d00:0:0:0:1
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0