Apex domains cannot have CNAME records.
Question and response
Question
dig techdeploynow.com. NS
Answer
techdeploynow.com. 2 NS ns-1968.awsdns-54.co.uk.
techdeploynow.com. 2 NS ns-1964.awsdns-53.co.uk.
techdeploynow.com. 2 NS ns-716.awsdns-25.net.
techdeploynow.com. 2 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