„Privacy-enhancing digital infrastructures“ – to ensure that searching the internet respects fundamental rights and is privacy-friendly

How can Internet search be organised in a way that respects fundamental rights and protects privacy? Over the next three years, teams from the University of Kassel and the Open Search Foundation in Starnberg will investigate this question in the PriDI research project.

To this end, they are supporting the development of an open European search infrastructure at the interface between law, society and business informatics. The aim is to anchor fundamental values such as privacy and data protection in the sense of „values by design“ in an open European web index that is currently under development.

„The existing internet search infrastructure is geared towards commercial interests, not towards the best possible realisation of fundamental rights. However, in order for digitalisation to unfold its positive effects, precisely such an orientation towards fundamental rights is required.“

Priv.-Doz. Dr. Christian Geminn, Mag. iur.
University of Kassel, Managing Director of the provet project group

About the project

Search engines as a risk to privacy

The business models of search engines are based on the targeted marketing of user data from searchers, e.g. for personalised online advertising. User data is the „digital currency“ of the 21st century and therefore consitutes an important source of revenue for online platforms.

The collection of user data makes people very predictable for advertisers. This makes them susceptible to manipulation, for example through online advertising that is tailored to their individual browsing behaviour, interests and circumstances.

Monopolisation of the search engine market

The global search engine market is currently dominated by just four providers, first and foremost by Google with a market share of 80 to 90 per cent. These providers (in addition to Google, these are Bing, Yandex and Baidu) have their own so-called web indexes. A web index is a kind of table of contents for the World Wide Web and as such makes up the core of any search engine. It is very difficult for new search engines to compete with the established ones.

Market liberalisation and digital sovereignty through an independent open web index

An open web index as an alternative to the closed, non-transparent systems of the large platforms will provide a large number of (new) search engines with a basis for their services. Scientists and entrepreneurs will also be able to use it for research and innovation, for example in the field of artificial intelligence. This opening up of the search engine market creates diversity and freedom of choice when searching the internet, thereby strengthening the informational self-determination of citizens.

Overall, such an open web index fosters freedom of information. It would be an important step towards digital sovereignty.

Legal and business informatics expertise for an open search infrastructure

In order for this new open search infrastructure to be fully effective, its design must be in line with fundamental rights.

Researchers from the Open Search Foundation and the University of Kassel will support the ongoing activities of the European „Open Search Initiative“ to develop an open search infrastructure with legal and business informatics expertise and carry out a technology and data protection impact assessment for the area of open internet search. The aim of the project is to support the design of the emerging open web index and the associated search engines by answering legal questions. The project plan also includes requirement and design models, such as guidelines for companies on how they can use the open web index in compliance with fundamental rights.

Questions need to be answered, for example, in the context of the „right to de-index“. The impact and application of European legal acts such as the Digital Services Act, Digital Markets Act and AI Act on an open search infrastructure must also be analysed. Furthermore, data governance issues also play an important role. The aim is to align the design of an open search infrastructure with the fundamental rights and principles that the European Commission has also declared to be the benchmark of the „Digital Decade“.

The project is intended to identify the fundamental-rights and rights requirements for an open web index and the services based upon it and to make them available to the designers and developers of the open web index in a comprehensible manner.

Project description

Project Partners:
University of Kassel, Open Search Foundation e.V.

Duration of project:
March 2024 to February 2027

Project funding:
German Federal Ministry of Research, Technology and Space

Pridi on the Website of BMBF

Pridi on the Website of University of Kassel

Funded by

Funded by BMFTR-Logo

Research at the interface between law, society and business informatics

Internet search

Values-by-design

Fundamental rights

Privacy

Data protection

Partners

Logo Universität Kassel

University of Kassel

Website

Logo Open Search Foundation

Open Search Foundation e.V.

Website

Logo ITeG

ITeG

Website

The PriDI project is part of the BMBF-funded Plattform Privatheit. In this project, experts are analysing interdisciplinary issues relating to privacy and data protection in the digital world. The aim is to find holistic solutions for innovative data protection. The BMBF is funding the entire joint project for three years with 1.29 million euros.

Plattform-Privatheit-Logo

Plattform Privatheit

Website

Core team

Dr. Christian Geminn, Projektleiter des Projekts PriDI

Priv.-Doz. Dr. Christian Geminn, Mag. iur.
Project Leader

Paul Johannes, Universität Kassel, Projekt PriDI

Paul C. Johannes
Research Associate

Matthias Söllner, Universität Kassel, Projekt PriDI

Prof. Dr. Matthias Söllner
Network Partner
Business Informatics

Sophia Meywirth

Sophia Meywirth
Research Associate

Portraitfoto Sarah Götz

Sarah Götz
Research Associate

Portrait Martin Hähnel

Martin Hänel
Research Associate

Dr. Stefan Voigt
Chairman
Open Search Foundation e.V.

Charlotte Werther Portrait

Charlotte Werther
Research Associate

Carolin Bauer Portraitfoto

Carolin Bauer
Science Communicator

Portraitfoto Anka Schuler

Anka Schuler
Support Science Communication

Portrait Ursula Gmelch

Ursula Gmelch
Events & Ecosystem

News & Events

Addictive Potential Due to Technology Design – Preliminarily also for Instagram and Facebook

Instagram and Facebook are also addictive—for now—more on the European Commission’s investigation
16. September 2026/von Laura Voigt

Yet another record fine against Google – yes, but…

The EU has imposed the highest penalty ever handed down under the DMA—but what impact will this penalty actually have? PriDI legal expert Charlotte Werther analyzes the ruling.
26. Juli 2026/von Laura Voigt

A Costly Start to Summer for Google

Google must pay a total of 6.2 billion euros as a result of three court rulings from 2024 to 2026. The latest ruling, dated July 2, 2026, concerns the pre-installation agreements for Android phones. Charlotte Werther has the details.
2. Juli 2026/von Laura Voigt

Are search engine operators liable for AI-generated answers?

The Munich I Regional Court answered this question in May 2026. Charlotte Werther summarizes the decision.
17. Juni 2026/von Laura Voigt

“Democratic Resilience in the Age of Artificial Intelligence”

What challenges do democracies face in the age of AI? The PriDI team took part in an insightful conference.
10. Juni 2026/von Laura Voigt

It’s All a Matter of Mindset – Data Protection Through Technology Design as a Competitive Advantage

“Businesses and Data Protection: A Snapshot of Public Opinion in 2026” — PriDI legal expert Charlotte Werther summarizes the key findings of this survey conducted by the Data Protection Foundation.
25. Mai 2026/von Laura Voigt

Information, yes – but not always and not in every case!

A request for information under Article 15 of the GDPR does not always have to be granted – PriDI legal expert Charlotte Werther summarizes a recent ruling by the European Court of Justice.
26. März 2026/von Laura Voigt

Making Friends Made Easy?

PriDI team member Charlotte Werther analyzes the lawsuit against Facebook and its “Find Friends”-feature.
2. März 2026/von Laura Voigt

Technology Design Under Scrutiny: Is TikTok Addictive? For now, yes.

PriDI team member Charlotte Werther provides an update on the European Commission's investigation into TikTok.
11. Februar 2026/von Laura Voigt
Mehr laden

Contact us

We look forward to your questions and comments! Please simply send us an e-mail.

General enquiries

 info@pridi-projekt.de

Press / Media
Interview requests

 media@pridi-projekt.de

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Please note: PriDI-News will be delivered together with the Newsletter of the Open Search Foundation e.V..

At the interface between law and business informatics, the PriDI project is researching how an open web index can be designed in compliance with fundamental rights and in a way that protects privacy – for example how values such as privacy and data protection can be anchored in the web index in the sense of ‘value-by-design’. The project involves the University of Kassel with the Research Centre for Information Systems Design, the Open Search Foundation and the BMFTR-funded Plattform Privatheit.

PridI on the website of BMFTR

Funded by

Funded by BMFTR-Logo