Apex domains cannot have CNAME records.
Question and response
Question
dig save-formerly.com. NS
Answer
save-formerly.com. 5 NS ns-502.awsdns-62.com.
save-formerly.com. 5 NS ns-1643.awsdns-13.co.uk.
save-formerly.com. 5 NS ns-1768.awsdns-29.co.uk.
save-formerly.com. 5 NS ns-1999.awsdns-57.co.uk.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0