Apex domains cannot have CNAME records.
Question and response
Question
dig hwclouds-dns.com. NS
Answer
hwclouds-dns.com. 5 NS ns1.hwclouds-dns.net.
hwclouds-dns.com. 5 NS ns1.hwclouds-dns.com.
Authority
The response has no authority records.
Additional
ns1.hwclouds-dns.com. 5 A 116.205.5.33
ns1.hwclouds-dns.com. 5 A 116.205.223.130
ns1.hwclouds-dns.com. 5 A 122.112.208.253
ns1.hwclouds-dns.com. 5 A 139.9.224.17
ns1.hwclouds-dns.net. 5 A 159.138.17.187
ns1.hwclouds-dns.net. 5 A 159.138.160.107
ns1.hwclouds-dns.net. 5 A 190.92.196.2
ns1.hwclouds-dns.com. 5 AAAA 2407:c080:20:ffff:ffff:fffe:0:1
ns1.hwclouds-dns.net. 5 AAAA 2407:c080:20:ffff:ffff:fffe:0:1
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0