Apex domains cannot have CNAME records.
Question and response
Question
dig jcwhosting.org. NS
Answer
jcwhosting.org. 2 NS linus.ns.1-grid.co.za.
jcwhosting.org. 2 NS linus.ns.1-grid.com.
jcwhosting.org. 2 NS linus.ns.1-grid.net.
jcwhosting.org. 2 NS linus.ns.1-grid.co.uk.
Authority
The response has no authority records.
Additional
linus.ns.1-grid.co.uk. 3 A 41.185.8.21
linus.ns.1-grid.co.za. 3 A 41.185.8.22
linus.ns.1-grid.com. 3 A 41.185.8.21
linus.ns.1-grid.net. 3 A 41.185.8.22
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0