Whe is on the Internet is being spied on by and for advertising. Advertisers want to know which websites you come from, what topics you are interested in, what gender and age you are and what your income is. At its core, it is about using technical tricks to secretly provide users with a personal profile without consent, to comprehensively track activities and to use such data not only for your own advertising, but also to sell it to third parties.
The advertising industry’s tracking tricks have got around and are increasingly seen as an intolerable invasion of privacy. So far, the focus of criticism has been primarily on cookies, small data packets with which you can be recognized as a visitor by the websites you visit. In this way, a web service knows who has logged in and which settings they prefer. If such a cookie comes from the website, it is a first-party cookie.
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