Subdomains are Internet addresses for different sections of your website. They use your main domain name and a prefix. For example, if your domain is domain.com, a subdomain might be store.domain.com. You can also create a wildcard subdomain by entering the * symbol instead of the name. Site visitors will be redirected to this subdomain regardless of the subdomain name they enter in a browser.
Please follow the following steps:
1) Login to Plesk control panel.
2) Click on Subscriptions.
3) Select the corresponding Subscriptions from the list.
4) Click on Websites & Domains > Click Add New subdomain.
a) Type subdomain Name as marked in RED.
5) Click Ok.
Information: The subdomain was created.
