Apex domains cannot have CNAME records.
Question and response
Question
dig hosting-solutions.net. NS
Answer
hosting-solutions.net. 5 NS ns.eu-globaldns.com.
hosting-solutions.net. 5 NS ns.cn-globaldns.com.
hosting-solutions.net. 5 NS ns.us-globaldns.com.
hosting-solutions.net. 5 NS ns.au-globaldns.com.
hosting-solutions.net. 5 NS ns.eu-globaldns.ba.
Authority
The response has no authority records.
Additional
ns.au-globaldns.com. 5 A 27.100.36.185
ns.cn-globaldns.com. 5 A 45.124.64.141
ns.eu-globaldns.ba. 5 A 185.99.0.250
ns.eu-globaldns.com. 5 A 185.99.0.245
ns.us-globaldns.com. 5 A 31.220.17.9
ns.au-globaldns.com. 5 AAAA 2402:9e80:1:0:0:0:1:c42c
ns.cn-globaldns.com. 5 AAAA 2402:9e80:0:1000:0:0:2:a74a
ns.eu-globaldns.ba. 5 AAAA 2a00:8620:2:0:0:0:0:250
ns.eu-globaldns.com. 5 AAAA 2a00:8620:2:0:0:0:0:245
ns.us-globaldns.com. 5 AAAA 2a02:4780:10:2c:0:0:0:1
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0