If you have an SSL certificate installed and would like to force your website to load with https URL – you may add the following code in the .htaccess file (Linux based hosting):
RewriteEngine On
RewriteCond %{HTTPS} !=on
RewriteRule ^(.*)$ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301,NE]
You need to place the .htaccess file in the home directory of your website.