This tool checks if your internet connection is “polluted” by advertisements and trackers not from web sites but from Internet network operators (ADSL or free Wi-Fi hotspots providers).
Indeed, some operators are modifying on the fly web pages that will be displayed in the Web browser. These changes can be the injection of advertisements, replacement or deletion of advertising of competitors, but also the injection of malicious elements that may compromise the security of your computer.
To check your connection and create a status report, click on the button.
Web site : http://walter-experiment.inria.fr