Before adding a domain in your Plesk Web Admin, if you are using a free DNS zone as indicated below, you may need to add and update the DNS by referring to this URL (here) before proceeding to add the account.
ns05.usonyx.net
ns06.usonyx.net
ns09.usonyx.net
ns10.usonyx.net
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This section will guide you through the steps to create an account from your Plesk Web Admin.
1. Log in to https://IPAddress:8443 or https://hostname:8443 using your Plesk Admin login details provided in the Product Welcome Email.
2. Click on "Add Domain" under Websites & Domains
3. Next, fill in the domain details and webspace settings as shown below.
4. Once you have completed the steps above, click back to Websites & Domains; your domain name will appear there, allowing you to manage your domain features.
5. Done