Apex domains cannot have CNAME records.
Question and response
Question
dig hockeywebs.com. NS
Answer
hockeywebs.com. 5 NS ns-1457.awsdns-54.org.
hockeywebs.com. 5 NS ns-47.awsdns-05.com.
hockeywebs.com. 5 NS ns-80.awsdns-10.com.
hockeywebs.com. 5 NS ns-1163.awsdns-17.org.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0