Apex domains cannot have CNAME records.
Question and response
Question
dig beanstream.com. NS
Answer
beanstream.com. 5 NS ns-1011.awsdns-62.net.
beanstream.com. 5 NS ns-1432.awsdns-51.org.
beanstream.com. 5 NS ns-1882.awsdns-43.co.uk.
beanstream.com. 5 NS ns-24.awsdns-03.com.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0