For example, you have a domain name register on Alibaba Cloud, for example: sampledomain.com, then you need to bind it to an IP address or a CNAME. Then you need to go to the web console: Go to "Domains & Websites" --> Navigate to "Alibaba Cloud DNS" --> Select the domain name and click on the button "Configure". In the next step, you need to add the DNS record for this domain: sampledomain.com.
Let's make it simple, you are going to bind it to the IP: 100.0.0.1, so in the "DNS settings" page, click on the button "Add Record":
Type: A - IPV4 address
Host: @.sampledomain.com
ISP Line:Default - Return to the default value when the query is not matched to any view.
Value: 100.0.0.1
TTL: 10 minutes
Please be noted, you want the naked domain name sampledomain.com resolvable, so please type "@" in the "Host", then the naked name can be resolved, just like the above example shows you.