Apex domains cannot have CNAME records.
Question and response
Question
dig Valis.COM. NS
Answer
valis.com. 2 NS ns.talksoft.com.
valis.com. 2 NS ns.valis.com.
Authority
The response has no authority records.
Additional
ns.valis.com. 2 A 68.74.116.177
ns.talksoft.com. 2 A 68.74.116.180
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0