Apex domains cannot have CNAME records.
Question and response
Question
dig mylem.org. NS
Answer
mylem.org. 5 NS ns-126.awsdns-15.com.
mylem.org. 5 NS ns-839.awsdns-40.net.
mylem.org. 5 NS ns-1070.awsdns-05.org.
mylem.org. 5 NS ns-1166.awsdns-17.org.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0