With server-to-server tracking, the data is not transferred from the client, but directly from the web server (of the website operator) to the Webtrekk tracking server.

The Webtrekk JavaScript implemented in a web page generates an image object that sends a request to the Webtrekk tracking system. Relevant information for the page is sent as URL parameters in this request. While additional information (referrer and user agent, browser language, cookies) is transferred in the browser' s request header, the TCP/IP connection can make the IP address of the user available in the tracking system.

Users without Javascript send information to the tracking system via the URL of an image in the <noscript> area. The tracking system will then return a 1x1 pixel GIF image in the response. Also, cookies (only with activated third-party cookies) are sent in the response header.

Particularities of the URL-based tracking are:

  • high data accuracy
  • tracking is not evident to visitors
  • tracking without cookies
  • direct testing on websites is not possible.


In this documentation, you will learn about the technical details of server-to-server tracking and how to use it for your individual needs to obtain accurate data.