Send all insecure traffic to the secure version using .htaccess.

1. In cPanel File Manager (article 111), open .htaccess in public_html (enable "show hidden files" if needed).
2. Add these lines at the top:

   RewriteEngine On
   RewriteCond %{HTTPS} off
   RewriteRule ^(.*)$ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]

3. Save, then test by visiting the http:// version — it should redirect to https://.

Important: Back up .htaccess first. Make sure your SSL certificate is installed (article 140) before adding this, or visitors will hit errors.