To install a free Let's Encrypt SSL certificate on to your domain name you need to follow these steps:
- Login to your cPanel account.
- Scroll down to the "Security" section
- Click on "Let's Encrypt"
- Scroll to the "Issue a new certificate" section
- Find the domain name you wish to install the SSL certificate on and click the "Issue" button on the right hand side.
- On the next page simply scroll down and click the "Issue" button towards the bottom left.
After a few moments your SSL certificate will be installed and your website will be secure.