Apex domains cannot have CNAME records.
Question and response
Question
dig gsiperstore.com. NS
Answer
gsiperstore.com. 4 NS alec.ns.cloudflare.com.
gsiperstore.com. 4 NS megan.ns.cloudflare.com.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0