Apex domains cannot have CNAME records.
Question and response
Question
dig miningequipments.net. NS
Answer
miningequipments.net. 4 NS ns-990.awsdns-59.net.
miningequipments.net. 4 NS ns-425.awsdns-53.com.
miningequipments.net. 4 NS ns-1799.awsdns-32.co.uk.
miningequipments.net. 4 NS ns-1466.awsdns-55.org.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0