Design Google News
Hard · System Design · about 45 minutes
Asked at Google, Meta, Microsoft, LinkedIn, X (Twitter).
Design a news aggregator like Google News. It ingests ~2M articles a day from ~50k publishers, groups articles about the same event into stories, and shows ~100M daily readers a front page of top stories by region and category plus a personalized "For you" section. Breaking stories should appear within ~5 minutes.