Plesk allows you to install both free and premium SSL/TLS certificates using Let's Encrypt's "SSL It!" extension. This guide walks you through the process of securing your domain with a free Let's Encrypt certificate directly from the Plesk control panel.

How to Install an SSL Certificate

  1. Step 1: Access SSL/TLS Certificates

    Log in to your Plesk account and navigate to Websites and Domains, then select SSL/TLS Certificates.

    SSL/TLS Certificates menu

    Note: The status "Domain not secured" will be visible under SSL/TLS Certificates, indicating that the domain lacks SSL protection.

  2. Step 2: Initiate Free Certificate Request

    Click the "Get it free" button to start the Let's Encrypt certificate installation process.

    Get it free button

  3. Step 3: Configure Certificate Options

    The Let's Encrypt SSL certification window will appear. Enter an email address for notifications and lost-key recovery.

    Choose what to secure in addition to the main domain:

    • Wildcard Domain: Matches one or more subdomains
    • "www" subdomain and selected domain aliases
    • Webmail on the main domain
    • IMAP, POP, SMTP mail domains

    Select the desired options, then click the "Get it free" button.

    Certificate configuration options

  4. Step 4: Verify Installation

    Let's Encrypt will generate and install the SSL/TLS certificate automatically. Once complete, return to SSL/TLS Certificates and inspect the list of Secured Components. Your domain will now be marked as secured.

    Domain secured status