Apex domains cannot have CNAME records.
Question and response
Question
dig axlbox.biz. NS
Answer
axlbox.biz. 4 NS ns1.value-domain.com.
axlbox.biz. 4 NS ns2.value-domain.com.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0