Cloudflare, Inc. has published its sixth annual Year in Review, offering one of the most comprehensive snapshots of how the Internet evolved in 2025. The report analyzes global Internet traffic, usage patterns, and security trends, drawing on data from Cloudflare's vast global network and its Cloudflare Radar platform.
According to the report, global Internet traffic grew by 19 percent year-on-year, reflecting society's increasing dependence on digital connectivity for both personal and professional activities. A major shift observed in 2025 was the rapid transition from large-scale AI model training to continuous AI inference, alongside broader advancements in artificial intelligence capabilities across the Internet.
Security milestones also defined the year. Post-quantum encryption now protects 52 percent of all human Internet traffic, helping safeguard users against future quantum-based threats. However, this progress was matched by escalating cyber risks, as Cloudflare recorded more than 25 record-breaking distributed denial-of-service DDoS attacks, underscoring the intensifying scale of cyber warfare.
