Apex domains cannot have CNAME records.
Question and response
Question
dig ediscdns1.com. NS
Answer
ediscdns1.com. 2 NS ns2.ediscdns1.com.
ediscdns1.com. 2 NS ns1.ediscdns1.com.
Authority
The response has no authority records.
Additional
ns1.ediscdns1.com. 2 A 170.10.164.198
ns2.ediscdns1.com. 2 A 170.10.164.207
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0