Data Infrastructure & Analytics
Making the Internet observable- the evolution of Cloudflare Radar

Making the Internet observable- the evolution of Cloudflare Radar

10/27/2025 · David Belson

What this post added

This post details the evolution of Cloudflare Radar over five years, highlighting its expansion into Internet security transparency with Certificate Transparency (CT) data, TCP resets and timeouts for detecting connection tampering, and post-quantum encryption adoption tracking. It also introduces AI Insights, providing visibility into AI crawler activity, crawl-to-refer ratios, and robots.txt usage by AI bots. Furthermore, Radar has enhanced routing visibility with data on route leaks and origin hijacks, contributing to Internet resilience.

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