Howto force SSL for all requests?

4 comments

1. Here is a complete guide – Enable Complete support for SSL on WordPress

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2. A simple check for is_ssl() should do it:

   add_action( 'plugins_loaded', 'wpse_2718_force_ssl' );
   
   function wpse_2718_force_ssl()
   {
       if ( is_ssl() )
           return;
   
       wp_redirect(
           'https://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'] 
       );
       exit;
   }
   

   But I would do this in .htaccess to catch images too:

   RewriteEngine On
   RewriteCond %{HTTPS} !=on
   RewriteRule ^ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]
   

   For ISS see this answer on Stack Overflow.

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3. Add this rule to the top of .htaccess:

   # BEGIN Force SSL
   # This should be the first rule before other rules
   <IfModule mod_rewrite.c>
       RewriteEngine On
   
       RewriteCond %{HTTPS} !=on
       RewriteRule ^/?(.*) https://%{SERVER_NAME}/$1 [R,L]
   </IfModule>
   # END Force SSL
   

   This should be before WordPress’ rules.

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4. I’ve used Really Simple SSL to my all of clients sites and it works very fine. If you dont want to modify code, simply install this plugin and config it.

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