How we detect route leaks and our new Cloudflare Radar route leak service

What this post added

This post introduces Cloudflare Radar's route leak data and API, making information about route leaks across the internet publicly available. It details the system built to detect route leaks using data from public sources and Cloudflare's global network, and explains the concepts of BGP and various types of route leaks (Type 1, 2, 3, and 4) as defined by RFC7908. This enhances the 'Global Network Expansion' thread by demonstrating how Cloudflare leverages its network visibility to actively monitor and mitigate internet routing issues, contributing to overall internet stability.