Apex domains cannot have CNAME records.
Question and response
Question
dig hostia.name. NS
Answer
hostia.name. 5 NS dns3.hostia.name.
hostia.name. 5 NS dns1.hostia.name.
Authority
The response has no authority records.
Additional
dns1.hostia.name. 5 A 95.216.23.197
dns3.hostia.name. 5 A 51.68.45.169
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0