Apex domains cannot have CNAME records.
Question and response
Question
dig hostpoint.ch. NS
Answer
hostpoint.ch. 5 NS ns2.hostpoint.ch.
hostpoint.ch. 5 NS ns3.hostpoint.ch.
hostpoint.ch. 5 NS ns.hostpoint.ch.
hostpoint.ch. 5 NS ns-anycast2.hostpoint.ch.
hostpoint.ch. 5 NS ns-anycast1.hostpoint.ch.
Authority
The response has no authority records.
Additional
ns.hostpoint.ch. 5 A 217.26.51.254
ns2.hostpoint.ch. 5 A 217.26.53.254
ns3.hostpoint.ch. 5 A 217.26.60.250
ns-anycast1.hostpoint.ch. 5 A 192.174.68.9
ns-anycast2.hostpoint.ch. 5 A 176.97.158.9
ns.hostpoint.ch. 5 AAAA 2a00:d70:0:b:0:0:0:d
ns2.hostpoint.ch. 5 AAAA 2a00:d70:0:b:0:0:0:1d
ns3.hostpoint.ch. 5 AAAA 2a00:d70:0:b:0:0:0:b
ns-anycast1.hostpoint.ch. 5 AAAA 2001:67c:1bc:0:0:0:0:9
ns-anycast2.hostpoint.ch. 5 AAAA 2001:67c:10b8:0:0:0:0:9
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0