Apex domains cannot have CNAME records.
Question and response
Question
dig stelogy.com. NS
Answer
stelogy.com. 5 NS master-ns2.stelogy.com.
stelogy.com. 5 NS master-ns1.stelogy.com.
Authority
The response has no authority records.
Additional
master-ns1.stelogy.com. 5 A 213.111.2.87
master-ns2.stelogy.com. 5 A 213.111.1.41
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0