By default deep link URLs generated by the Wordpress plugin will be in the format :
regardless of where your Wordpress site is hosted.
If you would prefer your links to look like they are coming from your Wordpress site instead then you can make use of the Redirect URL of the Wordpress options.
This allows you to nominate another URL that will handle the deep link redirection.
For example, if your Wordpress site has the URL http://elephants.co.uk, then create a folder inside the root directory of the Wordpress installation named something like 'go'.
Inside this folder create a file named index.php with the contents:
<?php $ds_url = 'http://your-ds-server.com'; header("Location: $ds_url/index.php?" . $_SERVER['QUERY_STRING']); ?>