Apex domains cannot have CNAME records.
Question and response
Question
dig accountonline.org. NS
Answer
accountonline.org. 5 NS ns-380.awsdns-47.com.
accountonline.org. 5 NS ns-1302.awsdns-34.org.
accountonline.org. 5 NS ns-474.awsdns-59.com.
accountonline.org. 5 NS ns-1423.awsdns-49.org.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0