Apex domains cannot have CNAME records.
Question and response
Question
dig contentforhire.com. NS
Answer
contentforhire.com. 4 NS ns-944.awsdns-54.net.
contentforhire.com. 4 NS ns-996.awsdns-60.net.
contentforhire.com. 4 NS ns-1787.awsdns-31.co.uk.
contentforhire.com. 4 NS ns-572.awsdns-07.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0