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Workers now enables Node.js compatibility by default, supports applications up to 64 mebibytes, and adds a URL-based module registry with import.meta, lazy compilation, shared code caches, and clearer errors.
Precursor, our new continuous behavioral validation engine for bot management, offers visibility into how humans and bots actually interact across the full user journey. By turning session-level behavior into bot detection signals, it identifies advanced automation with higher precision — while reducing friction for legitimate users.
We are opening our advanced Client-Side Security tools to all users, featuring a new cascading AI detection system. By combining graph neural networks and LLMs, we've reduced false positives by up to 200x while catching sophisticated zero-day exploits.
The Web streams API has become ubiquitous in JavaScript runtimes but was designed for a different era. Here's what a modern streaming API could (should?) look like.
One engineer used AI to rebuild Next.js on Vite in a week. vinext builds up to 4x faster, produces 57% smaller bundles, and deploys to Cloudflare Workers with a single command.
A recent npm supply chain attack compromised 18 popular packages. This post explains how Cloudflare’s graph-based machine learning model, which analyzes 3.5 billion scripts daily, was built to detect and block exactly this kind of threat automatically.
There's no way to audit a site’s client-side code as it changes, making it hard to trust sites that use cryptography. We preview a specification we co-authored that adds auditability to the web.
Over the year we have greatly expanded Node.js compatibility. There are hundreds of new Node.js APIs now available that make it easier to run existing Node.js code on our platform.
Cap'n Web is a new open source, JavaScript-native RPC protocol for use in browsers and web servers. It provides the expressive power of Cap'n Proto, but with no schemas and no boilerplate.
We've implemented the node:http client and server APIs in Cloudflare Workers, allowing developers to migrate existing Node.js applications with minimal code changes.
Cloudflare Workers now support FinalizationRegistry, but just because you can use it doesn’t mean you should.
Cloudflare Snippets are now generally available, enabling fast, cost-free JavaScript-based HTTP traffic modifications across all paid plans.
Today we're announcing our latest contribution to Node.js, now available in v23.8.0: URLPattern.
Learn more about how Cloudflare developed an AI model to uncover malicious JavaScript intent using a Graph Neural Network, from pre-processing data to inferencing at scale.
Internationalization and localization require more than translation: tone, images, date/time and number formatting, among other items, need to be considered.
We used Cloudflare’s Developer Platform and Durable Objects to build authentication and a WebSockets API that developers can use to call AI Gateway, enabling continuous communication over a single
Workers now supports more NPM packages and Node.js APIs using an overhauled hybrid compatibility layer.
polyfill.io, a popular JavaScript library service, can no longer be trusted and should be removed from websites
