When searching on the Internet via a web browser there is a variety of third-party actors active that collects information about the user’s behavior. Today, there is a missing transparency for the user about the actors, what information is gathered and what the information is used for. By simulating web browsing the extent of data collecting is researched. This study examines the current situation of major actors and their respective information. The study revealed five major services within recommended materials and data analysis. Two companies were investigated further. These companies are analyzed in the article based on each company’s privacy policy. The study shows that a lot of data is being gathered without it being obvious to the user.