Apex domains cannot have CNAME records.
Question and response
Question
dig childrenstores.com. NS
Answer
childrenstores.com. 1 NS dns1.abovedomains.com.
childrenstores.com. 1 NS dns2.abovedomains.com.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0