Installing an SSL Certificate in Plesk

In this article, you will learn how to secure a Plesk-managed website with an SSL certificate.

Overview

To set up an SSL certificate in Plesk, you need to rename the file extension of the SSL certificate and the intermediate certificate. Then, add the SSL certificate to the domain and connect the website to your certificate.

Requirements

Renaming the File Extension of the SSL Certificate and the Intermediate Certificate

In order to upload and use the SSL certificate in Plesk, you need to rename the file extension of the SSL certificate and the intermediate certificate. To do this, proceed as follows:

  • Open the Windows File Explorer.

  • Click View in the menu at the top.

  • Make sure that the File name extensions option is enabled.

  • Open the folder that contains the SSL Certificate and the Intermediate Certificate.

  • Right-click the SSL Certificate.

  • Click Rename.

  • Replace the .cer file extension with the .crt file extension.

  • Press Enter.

    The following message may appear:

    If you change the file name extension, the file may become unusable. Do you still want to change it?

  • Click Yes.

  • Repeat this process with the intermediate certificate.

Adding the SSL Certificate to Your Domain

  • In the navigation bar on the left, click Websites & Domains.

  • In the Websites & Domains section, click the down arrow.

  • Under Dashboard, in the Security section, click SSL/TLS Certificates.

The SSL/TLS Certificate for [domain name] page is displayed.

  • In the area on the right, click Advanced Settings.

  • Click Add SSL/TLS Certificate.

    The Add SSL/TLS Certificate page displays.

  • Give the certificate a name (any name).

  • Go to the Upload Certificate Files section and select the Private Key, Certificate and CA Certificate (here the Intermediate certificate) files on your computer.

  • Click Upload Certificate.

Connecting a Website with the SSL Certificate

After you add the certificate, you can enable SSL/TLS support and connect the certificate to the website.

  • Click Website & Domains in the menu.

  • Go to the Hosting & DNS tab.

  • Click Hosting Settings.

  • Go to the Security section and make the following settings:

    Enable SSL/TLS support.
    Enable the Permanent SEO-safe 301 redirect from HTTP to HTTPS option.

  • In the Certificate area, select your SSL certificate.

  • Click Apply

  • Click OK.

Your website is now accessible via https (Example: https://yourdomain.com).