We use the Google Analytics tracking code that you place on your Kickstarter page to track when someone visits your campaign after clicking on one of your Booster's referral URLs. Kickbooster has the ability to track clicks, pledges, cancellations and adjustments made throughout the funding period.
Right now we can determine if a pledge is made using a Kickbooster link but we cannot collect backer information (i.e. name, email address, etc).
Based on limitations provided by Kickstarter, we are only able to track pledges that occur within the same browser session as the initial click. So if the backer closes their browser completely and orders straight from the Kickstarter URL, we cannot track that it went through a Boosters unique URL, only if they make their pledge from the unique URL.