Apex domains cannot have CNAME records.
Question and response
Question
dig xurrent.com. NS
Answer
xurrent.com. 5 NS ns-154.awsdns-19.com.
xurrent.com. 5 NS ns-1478.awsdns-56.org.
xurrent.com. 5 NS ns-747.awsdns-29.net.
xurrent.com. 5 NS ns-1826.awsdns-36.co.uk.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0