CrossOver tracks and measures the influence of content recommendation algorithms on social media in Belgium, exposing how they can lead to mis- and disinformation.


The project’s team monitors, investigates, exposes and responds to the spread of dubious and nefarious content in both French and Dutch on Youtube, Twitter and more. The overall aims of the projects are:

  • monitoring and investigating disinformation operations working with the media to expose malicious actors;
  • responding to and strengthening vulnerable communities;
  • planning and developing sustainable actions against disinformation in Belgium.

The initiative brings together EU DisinfoLab, the Dutch-language media outlet Apache, the French media education association Savoir Devenir, and the Finnish start-up Check First, all of which specialise in developing solutions and methodologies to combat disinformation.

What do we do in the CrossOver project?

CheckFirst’s main task is to develop dashboards of automated content spread in Belgium. This means that we are developing tools to monitor social media platforms, starting with Google search’s auto-complete and Twitter trends and observing which content they recommend to their users. This data are publicly available, as well as the full methodology, so that anyone can see which topics appear to be the most recommended algorithmically.

CheckFirst also conducts open source intelligence investigations together with Apache and EU DisinfoLab offering our skills to support their quality journalistic work

About us

We empower the fight against disinformation. Check First is a software and methodologies company founded by a developer and two journalists. We focus on creating the best tools and practices for the peculiar job of countering and monitoring fakes and influence campaigns, and gain time in the process by fostering collaboration. Our best asset is the complementarity of our founding team, making us approach problems in a comprehensive and innovative way.

Our story