How to enable Let’s Encrypt free SSL certificate for your domain

How to enable Let’s Encrypt free SSL certificate for your domain:

  1. Log in to Plesk.
  2. On the (left) sidebar, click Websites & Domains
  3. Click on the Let’s Encrypt symbol to pull up the Let’s Encrypt SSL Certificate page.
  4. Type a valid e-mail address in the box.
  5. Select the “Include www.(example.com)” as an alternate domain name check box. So that the SSL certificate protects your domain with and without the www prefix.