Apex domains cannot have CNAME records.
Question and response
Question
dig excitesoft.com. NS
Answer
excitesoft.com. 5 NS ns1.excitesoft.com.
excitesoft.com. 5 NS ns2.excitesoft.com.
Authority
The response has no authority records.
Additional
ns1.excitesoft.com. 5 A 85.17.4.157
ns2.excitesoft.com. 5 A 85.17.108.16
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0