Cloudflare Outage on November 18 2025

On November 18, 2025, millions of people around the world suddenly found that their favorite websites were not loading. From online stores and booking systems to internal business tools, many services became unreachable for nearly two hours. The cause? A major outage at Cloudflare — one of the world’s biggest internet infrastructure companies, powering and protecting a huge portion of the websites we all use every day.

 

While incidents like this sound technical and complicated, the story behind the outage is surprisingly easy to understand. A small change deep inside Cloudflare’s system triggered a chain reaction, causing parts of their global network to fail. In this article, we break down what happened, why it happened, and what it means for everyday users and businesses — in clear, simple language.

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