Apex domains cannot have CNAME records.
Question and response
Question
dig ciswired.com. NS
Answer
ciswired.com. 5 NS ns-47.awsdns-05.com.
ciswired.com. 5 NS ns-514.awsdns-00.net.
ciswired.com. 5 NS ns-1456.awsdns-54.org.
ciswired.com. 5 NS ns-1972.awsdns-54.co.uk.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0