Tracking is the collection of data regarding a particular user's activity across multiple websites or applications that aren’t owned by the data collector, and the retention, use or sharing of that data.
Our definition focuses on collection AND retention. So, for example, the definition wouldn’t apply to sites that log an IP address, but don’t save that information in a database. The definition also focuses on particular users, so data that is immediately aggregated doesn’t apply. And the collection is across context, so it doesn’t apply in cases when there is solely a first-party relationship with the user, for example the site only collects and retains information on site visitors.
“Trackers” are those services that we’ve identified and determined meet the definition of tracking above.
Disconnect compiles several lists of trackers. The open source list of trackers that power our browser extensions, Firefox’s private browsing mode, and many other popular privacy tools can be found here, along with a change log and notes. Or you can view a simple list of blocked trackers here. Example changes to this tracker list can be seen below. Please submit feedback here.
Disconnect strives to find the balance between privacy, security, usability and promoting a better Internet for everyone. These concerns drive our decisions in regards to trackers we block and don’t block.
We generally unblock tracking sites that commit to respect users’ Do Not Track (DNT) preferences and agree to comply with DNT as defined by the Electronic Frontier Foundation: https://www.eff.org/dnt-policy
We also generally unblock tracking sites that require users to transparently and explicitly opt in to collection and retention.
We also unblock trackers to provide a better user experience, based on the three types of evidence listed below. These unblocked trackers will appear in what we call the Content portion of our list. For some of our products and services, users can choose to block this portion of the list as well.
All of the trackers we’ve identified but don’t block, along with a change log and notes, can be found here. Or you can view a simple list of unblocked trackers here. Example changes to this tracker list can be seen below. Please submit feedback here.
Our tracker protection lists are dynamic and we welcome and rely on feedback from our community. If you believe that we’ve missed a tracker, or misidentified a tracker please fill out the form here: