Apex domains cannot have CNAME records.
Question and response
Question
dig eudc.cloud. NS
Answer
eudc.cloud. 5 NS beta.eudc.cloud.
eudc.cloud. 5 NS gamma.eudc.cloud.
eudc.cloud. 5 NS alpha.eudc.cloud.
Authority
The response has no authority records.
Additional
beta.eudc.cloud. 5 A 193.161.84.90
alpha.eudc.cloud. 5 A 91.109.200.200
gamma.eudc.cloud. 5 A 188.226.189.38
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0