Apex domains cannot have CNAME records.
Question and response
Question
dig antitainment.org. NS
Answer
antitainment.org. 5 NS ns-1091.awsdns-08.org.
antitainment.org. 5 NS ns-833.awsdns-40.net.
antitainment.org. 5 NS ns-678.awsdns-20.net.
antitainment.org. 5 NS ns-1319.awsdns-36.org.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0