Want to remove that pesky parameter from your domain? Well, now you can! With the simple help of .htaccess, you can have your pure domain back! Just follow these few steps.
Connect to your Webserver via File Transfer Protocol (FTP)
Go into your sites primary directory
Modify, or Create the .htaccess file
Use this code snippet and Save the file
RewriteEngine On
RewriteCond %{QUERY_STRING} .
RewriteRule ^([^.]*)$ /$1? [L,NE,R=301]
Vwolla! That harmless parameter is not to be seen anywhere.