HTTP to HTTPS Redirect

.htaccess

# Force Redirect HTTP to HTTPS
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteCond %{HTTPS} off
RewriteRule ^(.*)$ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]
</IfModule>

web.config

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
  <system.webServer>
    <rewrite>
      <rules>
        <-- Using URL Rewrite module as well as IIS 7 and higher only. -->
        <rule name="HTTP/S to HTTPS Redirect" enabled="true" stopProcessing="true">
        <match url="(.*)" />
        <conditions logicalGrouping="MatchAny">
          <add input="{SERVER_PORT_SECURE}" pattern="^0$" />
        </conditions>
        <action type="Redirect" url="https://{HTTP_HOST}{REQUEST_URI}" redirectType="Permanent" />
        </rule>
      </rules>
    </rewrite>
  </system.webServer>
</configuration>

wp-config.php

/** Force admin to use SSL */
define('FORCE_SSL_ADMIN', true);