We recently added support for Google Analytics link tracking tags to all routes. This update was designed to provide our users with additional reporting / insight into the traffic delivered to their sites via social media.
For example, when adding these tracking tags, dlvr.it appends '?utm_source=dlvr.&utm_medium=twitter' to your link URLs.
For the majority of users, this addition tracking code adds additional insight & visibility to website analytics reporting.
However, for some users, these tracking tags may result in visitors ending up on an error page on your site.