Fingerprint method

The fingerprint method is only used if the user's browser does not accept cookies.

When a user accesses the website, the pixel checks whether an Ever ID/cookie exists. If this is not the case, a new Ever ID is generated and a new cookie is stored. If the user blocks cookies, an Ever-ID is generated, but no cookie can be set. Instead, a fingerprint ID (FEID) is formed. The syntax for Ever IDs of users without cookies follows the same rules, so that the evaluation in the frontend is equally possible (see End Devices Visitor IDs).

The fingerprint ID is formed from the IP and the User Agent (includes e. g. browser, screen resolution...) and is usually 32 digits long. This fingerprint is only used to hold the current session together. The visitor is not recognized during a new session, even if the IP and user agent are identical. The FEID is passed on via a Javascript parameter (fp). Neither the parameter fp nor the fingerprint ID can be viewed via the Webtrekk frontend or the raw data.