Wildcard subdomains are a useful cPanel feature that allows you to direct non-existing subdomains to a specific folder on your server. They serve as a “catch-all” location so that if a user enters a subdomain URL that has yet to be created (for example, http://nothinghere.yourdomain.com), they’ll be directed to the content you determine, rather than an error page.
To create a wildcard subdomain in cPanel:
- Navigate to Domains > Subdomains.
- Complete the Create a Subdomain form, using an asterisk (*) as the Subdomain name.
- Select the parent domain and a folder to be used as the Document Root (this folder will hold the page content to which your users will be directed), then click Create to proceed.
- With the subdomain created, now select Domains > Zone Editor from the cPanel menu. Click + A Record to create an A record for your wildcard subdomain (*.yourdomain.com.).
- Note the additional period after your domain name. Ensure the A record points to your server’s IP address.
- Click Add an A Record to complete configuration.
Once the new A record has completed propagation, your wildcard subdomain will go live. Ensure you have the content to which you wish to redirect your users available in the nominated folder.