Apex domains cannot have CNAME records.
Question and response
Question
dig hostbuddy.cloud. NS
Answer
hostbuddy.cloud. 5 NS nz1.promohosts.com.
hostbuddy.cloud. 5 NS nz2.promohosts.com.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0