Apex domains cannot have CNAME records.
Question and response
Question
dig archerdigital.co.za. NS
Answer
archerdigital.co.za. 5 NS ns-317.awsdns-39.com.
archerdigital.co.za. 5 NS ns-1702.awsdns-20.co.uk.
archerdigital.co.za. 5 NS ns-1129.awsdns-13.org.
archerdigital.co.za. 5 NS ns-811.awsdns-37.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0