August 14, 2026•1 min read•from InfoQ

Cloudflare Migrates JavaScript CDN Serving 9B Requests a Day to Its Developer Platform

Cloudflare has migrated cdnjs, its open source CDN for JavaScript and CSS libraries, to its Developer Platform. The new architecture uses Workers, R2, KV, Workflows, Queues, Durable Objects and Containers, consolidating publishing and delivery infrastructure while preserving package contents, URLs and SRI hashes at a scale of 9 billion requests per day.

By Leela Kumili

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Tagged with

#Cloudflare

#CDN

#JavaScript

#CSS

#cdnjs

#Developer Platform

#Workers

#R2

#KV

#Workflows

#Queues

#Durable Objects

#Containers

#Publishing

#Delivery Infrastructure

#Package Contents

#URLs

#SRI Hashes

#Open Source

#Architecture