Apex domains cannot have CNAME records.
Question and response
Question
dig brassring.com. NS
Answer
brassring.com. 1 NS a3-65.akam.net.
brassring.com. 1 NS a1-160.akam.net.
brassring.com. 1 NS a7-67.akam.net.
brassring.com. 1 NS a6-66.akam.net.
brassring.com. 1 NS a16-67.akam.net.
brassring.com. 1 NS a28-64.akam.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0