Apex domains cannot have CNAME records.
Question and response
Question
dig vshosting.cloud. NS
Answer
vshosting.cloud. 5 NS ns.vshosting.eu.
vshosting.cloud. 5 NS ns.vshosting.cloud.
vshosting.cloud. 5 NS ns.vshosting.cz.
Authority
The response has no authority records.
Additional
ns.vshosting.cz. 5 A 78.24.8.150
ns.vshosting.eu. 5 A 89.235.0.2
ns.vshosting.cloud. 5 A 185.115.0.11
ns.vshosting.cz. 5 AAAA 2a00:1ed0:0:0:0:0:0:150
ns.vshosting.eu. 5 AAAA 2001:4de8:b0ba:525e:0:0:0:10
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0