As a safety precaution, we advice everybody to use SSL on their websites. You can use our free integrated Let's Encrypt SSL certificates for this. Enforcing SSL can be done by creating a .htaccess file in the document root (e.g. /domains/domain.com/public_html) with the following contents:
RewriteEngine On
RewriteCond %{HTTPS} off
RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI} [R=301,L]