of web traffic is tracked by Factor Eleven
of the top 10,000 sites seen loading the Factor Eleven tracker
Data from September 2017 to August 2019.
COOKIES are files placed by the website, stored in the browser
that is used to identify you to the website.
FINGERPRINTING is a unique digital signature derived from the properties of your device.
Provides advertising or advertising-related services such as data collection, behavioral analysis or retargeting.
Learn about our tracker categories
What is a tracker?