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

Today, Cloudflare introduced its route leak data and API, allowing anyone to access information about route leaks across the internet. The system collects data from public sources and Cloudflare's view of the internet through its massive global network. Route leak detection results are now available on Cloudflare Radar's ASN pages and via the API. Route leaks can cause significant disruptions to internet users, as seen in past notable incidents. Despite their criticality, route leaks are often detected only when users report noticeable effects. To address this issue, Cloudflare has developed a system that automatically detects route leak events and sends notifications to multiple channels for visibility. The company plans to release more features related to routing security in the future.