1. Login to DotNetPanel
2. Click your hosting space, check that you have at least 1 domain name unused available.
3. Navigate to Domains -> Add Domain and select Domain Alias
If you do not see Domain Alias option, you need to allocate Domain Alias resource for hosting plan / hosting space.
When you add domain alias, DotNetPanel will add a Domain and configure the domain as Website pointer to existing website.
Please make sure that you change domain dns to server dns.
It will take 12-24 hours for dns propagation on the internet.