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20.5 Million DDoS Attacks in Q1 2025: What Cloudflare's Data Shows

Summary

This article is based on a real 2025 incident or official security disclosure. Cloudflare reported blocking 20.5 million DDoS attacks in the first quarter of 2025, a 358% year-over-year increase.

What matters

This article is based on a real 2025 incident or official security disclosure. Cloudflare reported blocking 20.5 million DDoS attacks in the first quarter of 2025, a 358% year-over-year increase. About 6.6 million targeted Cloudflare network infrastructure during an 18-day multi-vector campaign, and roughly 700 attacks exceeded 1 Tbps or 1 Bpps. The figures underline the importance of automated, always-on mitigation.

This subject is more than a narrow technical detail. In real infrastructure, the application, server, network and external dependencies need to be considered together rather than as isolated components.

Why it matters in practice

For a website owner or hosting administrator, the value lies in turning technical information into concrete actions: timely updates, configuration review, monitoring, tested backups and reduction of unnecessary exposure.

No single control solves every problem. Resilience comes from multiple defensive layers, sensible isolation and operational procedures that have been tested before they are needed during a real incident.

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