In the face of controversy over social platform algorithms that can advance the dissemination of harmful content, European Commission (https://digital-strategy.ec.europa.eu/en/news/commission-sends-requests-information-youtube-snapchat-and-tiktok-recommender-systems-under-digital) with a communication to technological giants. **YouTube, Snapchat, and TikTok** must analyse and present actions related to content recommendations systems displayed to users.