Apex domains cannot have CNAME records.
Question and response
Question
dig infinitynotes.eu. NS
Answer
infinitynotes.eu. 5 NS dns2.host-vision.com.
infinitynotes.eu. 5 NS dns4.host-vision.com.
infinitynotes.eu. 5 NS dns1.host-vision.com.
infinitynotes.eu. 5 NS dns3.host-vision.com.
Authority
The response has no authority records.
Additional
dns1.host-vision.com. 5 A 46.4.107.20
dns2.host-vision.com. 5 A 176.126.200.40
dns3.host-vision.com. 5 A 94.130.189.177
dns4.host-vision.com. 5 A 51.195.150.221
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0