- Plesk for Windows
- Plesk for Linux
How to install SSL certificate for domain in Plesk?
First of all, you should have a purchased certificate for your website on hands. If you don't have a certificate, you can use a free certificate provided by Let's Encrypt extension. Follow the steps from How to install Plesk extensions and install Let's Encrypt.
Add certificate to a repository navigating to Plesk > Domains > example.com > SSL/TLS Certificates and select Add SSL/TLS Certificate
Then, enable SSL support at Plesk > Domains > example.com > Hosting Settings
At the same page, select a required certificate for a website at Plesk > Domains > example.com > Hosting Settings and click OK
To secure website with Let's Encrypt, go to Domains > example.com > Let's Encrypt select all required aliases and click Install
Note: The path Plesk > Tools & Settings > SSL Certificates is designed to install certificates to secure Plesk sever only and for Onyx versions, it allows you to secure your mail server too. It is not designed to be used by domain's certificates. Check official documentation here.