Apex domains cannot have CNAME records.
Question and response
Question
dig mosaix.digital. NS
Answer
mosaix.digital. 4 NS ns-1901.awsdns-45.co.uk.
mosaix.digital. 4 NS ns-1342.awsdns-39.org.
mosaix.digital. 4 NS ns-1753.awsdns-27.co.uk.
mosaix.digital. 4 NS ns-1863.awsdns-40.co.uk.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0