If you want WordPress to work on a temporary test domain (which we offer until your domain is transferred or registered), you need to modify it a bit, otherwise it will still redirect to the normal domain it has set up.

You need to edit the wp-config.php file and add the lines

define('WP_HOME', "http://".$_SERVER['HTTP_HOST']); // no trailing slash
define('WP_SITEURL', "http://".$_SERVER['HTTP_HOST']); // no trailing slash