Resources

Check First produces a variety of content, from articles to webinars and training. Below is a repository of our public resources, created during the execution of our various projects.

Our publication review process
Resources

Mozilla commissions CheckFirst to conduct a stress test of Ad Repositories

We’re proud to publish today together with the Mozilla Foundation the first comprehensive report on the state of ad libraries which have emerged or been strengthened by requirements under the European Digital Services Act.

Why is “Nazis” regularly trending on Twitter in Belgium?

Why is “Nazis” regularly trending on Twitter in Belgium?

An analysis showing how Russian official narratives get pushed whenever “nazis” show up on the platform.

The maze of content moderation on Odysee

The maze of content moderation on Odysee

Check First uncovered the complex content moderation policies of the Odysee video platform and its underlying LBRY blockchain. Our analysis shows governments are few to ask for take-downs of illegal content.

Mastodon, the rise of the Fediverse

Mastodon, the rise of the Fediverse

Mastodon, Fediverse, do you already feel lost just by using those 2 words which aren’t quite as new as you’d think? … Flashback

The Francophonie chooses CheckFirst again to run ODIL

The Francophonie chooses CheckFirst again to run ODIL

CheckFirst is proud to have been chosen again to help run ODIL, the platform for French speaking initiatives fighting disinformation

CheckFirst to join COM-PRESS project

CheckFirst to join COM-PRESS project

COM-PRESS aims at combating disinformation by equipping journalists with new image manipulation insights and detection methods.

Disinformation on Donbas is only a Google autocomplete away

Disinformation on Donbas is only a Google autocomplete away

An investigation to demonstrate how French speaking Belgians were hinted at searching for dubious sources when looking up the word “Donbass” in the Google search bar.

Replay: 22vlalapub, an analysis of political advertising on Meta, Google and Snapchat during French presidential election

Replay: 22vlalapub, an analysis of political advertising on Meta, Google and Snapchat during French presidential election

We had the pleasure to disclose our findings on 1 September. Watch the replay!

2 years of CheckFirst

2 years of CheckFirst

“We should work together for good and found a company!”. The exclamation came in between three people who hadn’t met in real life yet, but had spent countless hours fighting disinformation about COVID together during the first wave of the global pandemic.

22vlalapub: an analysis of political advertising on Meta, Google and Snapchat during French presidential election

22vlalapub: an analysis of political advertising on Meta, Google and Snapchat during French presidential election

During 4 months, Check First monitored political advertising using its tool 22vlalapub.fr. Using those data, we conducted a comprehensive analysis of the political advertising landscape on social media platforms during the 2022 French presidential elections.

About us

Check First is a leading Finnish software and methodologies company, spearheading adversarial research techniques. We believe that everyone should be able to understand how and why content is presented to them. We advocate for online clarity and accountability, building solutions to attain this goal. Partnering with leading institutions, regulators, NGOs and educators, we aim at curbing the spread of disinformation and foreign influence manipulations.

Our story