How do I redirect a domain from HTTP to HTTPS?

To redirect a site to the secure HTTPS version we can use the .htaccess file from the root directory of the site. These files can be edited either trough the File Manager available in the control panel or trough FTP.

Once we've opened the file, we'll add the following lines:

RewriteEngine on
RewriteCond %{HTTPS} off
RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI}

After saving the changes, the domain will be redirected to the HTTPS secured version.

If we use CMS applications (Wordpress, Prestashop, Magento, etc.), we will need to change certain settings for everything to work properly.