Summary
On July 30, 2026, Cloudflare detailed rebuilding cdnjs, the open-source CDN for front-end libraries that serves roughly 9 billion requests a day, on top of its own Developer Platform primitives (Workers and R2), replacing legacy infrastructure with the same serverless stack Cloudflare sells to customers.
What changed
cdnjs now runs on Cloudflare's Developer Platform (Workers and R2) rather than its prior bespoke infrastructure, a production dogfooding migration of a service handling about 9 billion requests per day.
Why it matters
Running a 9B-request/day public service on Workers and R2 is a credibility marker for the platform's ability to carry high-volume, latency-sensitive static delivery, a workload class buyers often assume still needs a traditional CDN. It also hardens cdnjs itself, a dependency embedded across a large share of the web.
Evidence excerpt
Dogfooding at scale: migrating cdnjs to Cloudflare's Developer Platform - cdnjs processes 9 billion requests a day.