Hello,

You can add the next lines to your .htaccess to overcome the duplicate content on Serach Engines.

RewriteEngine on

RewriteCond %{HTTP_HOST} ^domain.com [OR]

RewriteCond %{HTTP_HOST} ^82.223.246.132

RewriteRule (.*) http://www.domain.com/$1 [R=301,L]

RewriteCond %{THE_REQUEST} ^.*/index.html

RewriteRule ^(.*)index.php$ http://www.domain.com/$1 [R=301,L]

This is for auto WWW, auto redirect from www.domain.com/index.php[or]index.html to www.domain.com

I hope this helped you!