of web traffic is tracked by a3cloud.net
of the top 10,000 sites seen loading the a3cloud.net tracker
Data from September 2017 to February 2020.
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.
Learn about our tracker categories
What is a tracker?