Apex domains cannot have CNAME records.
Question and response
Question
dig jinyaoshangmao.com. NS
Answer
jinyaoshangmao.com. 5 NS ns1.jinyaoshangmao.com.
jinyaoshangmao.com. 5 NS ns2.jinyaoshangmao.com.
Authority
The response has no authority records.
Additional
ns1.jinyaoshangmao.com. 5 A 15.204.169.125
ns2.jinyaoshangmao.com. 5 A 5.135.31.112
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0