Apex domains cannot have CNAME records.
Question and response
Question
dig leadim.cloud. NS
Answer
leadim.cloud. 3 NS ns1.lead.im.
leadim.cloud. 3 NS ns2.lead.im.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0