Developer Week 2024 wrap-up

Developer Week 2024 has officially come to a close. Each day last week, we shipped new products and functionality geared towards giving developers the components they need to build full-stack applications on Cloudflare. Even though Developer Week is ... more

Cloudflare acquires Baselime to expand serverless application observability capabilities

Today, we’re thrilled to announce that Cloudflare has acquired Baselime. The cloud is changing. Just a few years ago, serverless functions were revolutionary. Today, entire applications are built on serverless architectures, from compute to databases, ... more

Browser Rendering API GA, rolling out Cloudflare Snippets, SWR, and bringing Workers for Platforms to all users

This post is also available in Español. Browser Rendering API is now available to all paid Workers customers with improved session management In May 2023, we announced the open beta program for the Browser Rendering API. Browser Rendering allows developers ... more

Blazing fast development with full-stack frameworks and Cloudflare

Hello web developers! Last year we released a slew of improvements that made deploying web applications on Cloudflare much easier, and in response we’ve seen a large growth of Astro, Next.js, Nuxt, Qwik, Remix, SolidStart, SvelteKit, and other web apps ... more

We've added JavaScript-native RPC to Cloudflare Workers

Cloudflare Workers now features a built-in RPC (Remote Procedure Call) system enabling seamless Worker-to-Worker and Worker-to-Durable Object communication, with almost no boilerplate. You just define a class: export class MyService extends WorkerEntrypoint ... more

New tools for production safety — Gradual deployments, Source maps, Rate Limiting, and new SDKs

This post is also available in 简体中文, 繁體中文, 日本語, 한국어, Deutsch and Español. 2024’s Developer Week is all about production readiness. On Monday. April 1, we announced that D1, Queues, Hyperdrive, and Workers Analytics Engine are ready for production scale ... more

Announcing Pages support for monorepos, wrangler.toml, database integrations and more!

Pages launched in 2021 with the goal of empowering developers to go seamlessly from idea to production. With built-in CI/CD, Preview Deployments, integration with GitHub and GitLab, and support for all the most popular JavaScript frameworks, Pages lets ... more

Improving Cloudflare Workers and D1 developer experience with Prisma ORM

Working with databases can be difficult. Developers face increasing data complexity and needs beyond simple create, read, update, and delete (CRUD) operations. Unfortunately, these issues also compound on themselves: developers have a harder time iterating ... more

Leveling up Workers AI: general availability and more new capabilities

This post is also available in 简体中文, 繁體中文, 日本語, Français and Español. Welcome to Tuesday – our AI day of Developer Week 2024! In this blog post, we’re excited to share an overview of our new AI announcements and vision, including news about Workers AI ... more

Bringing Python to Workers using Pyodide and WebAssembly

Starting today, in open beta, you can now write Cloudflare Workers in Python. This new support for Python is different from how Workers have historically supported languages beyond JavaScript — in this case, we have directly integrated a Python implementation ... more

Introducing Foundations - our open source Rust service foundation library

In this blog post, we're excited to present Foundations, our foundational library for Rust services, now released as open source on GitHub. Foundations is a foundational Rust library, designed to help scale programs for distributed, production-grade ... more

Privacy Pass: upgrading to the latest protocol version

Enabling anonymous access to the web with privacy-preserving cryptography The challenge of telling humans and bots apart is almost as old as the web itself. From online ticket vendors to dating apps, to ecommerce and finance — there are many legitimate ... more

A return to US net neutrality rules?

For nearly 15 years, the Federal Communications Commission (FCC) in the United States has gone back and forth on open Internet rules – promulgating and then repealing, with some court battles thrown in for good measure. Last week was the deadline for ... more

Cloudflare 2023 Year in Review

This post is also available in 한국어, 日本語, Português, Français, Español, Deutsch, 简体中文 and 繁體中文. The 2023 Cloudflare Radar Year in Review is our fourth annual review of Internet trends and patterns observed throughout the year at both a global and country/region ... more

Better debugging for Cloudflare Workers, now with breakpoints

As developers, we’ve all experienced times when our code doesn’t work like we expect it to. Whatever the root cause is, being able to quickly dive in, diagnose the problem, and ship a fix is invaluable. If you’re developing with Cloudflare Workers, we ... more

How Prisma saved 98% on distribution costs with Cloudflare R2

The following is a guest post written by Pierre-Antoine Mills, Miguel Fernández, and Petra Donka of Prisma. Prisma provides a server-side library that helps developers read and write data to the database in an intuitive, efficient and safe way. Prisma’s ... more

Birthday Week recap: everything we announced — plus an AI-powered opportunity for startups

This year, Cloudflare officially became a teenager, turning 13 years old. We celebrated this milestone with a series of announcements that benefit both our customers and the Internet community. From developing applications in the age of AI to securing ... more

Cloudflare Zaraz steps up: general availability and new pricing

This post is also available in 简体中文, 繁體中文, 日本語, 한국어, Deutsch, Français. Cloudflare Zaraz has transitioned out of beta and is now generally available to all customers. It is included under the free, paid, and enterprise plans of the Cloudflare Developer ... more

Cloudflare Zaraz supports JSONata

Cloudflare users leverage Zaraz for loading their third-party JavaScript tools. Tools like analytics, conversion pixels, widgets and alike, load faster and safer when loaded through Zaraz. When configuring a tool in Zaraz, users can specify the payload ... more

Recapping Speed Week 2023

This post is also available in 简体中文, 日本語, Español, Deutsch and Français. Speed Week 2023 is officially a wrap. In our Welcome to Speed Week 2023 blog post, we set a clear goal: “This week we will help you measure what matters. We’ll help you gain insight ... more

All the way up to 11: Serve Brotli from origin and Introducing Compression Rules

This post is also available in 简体中文, 日本語, Español, Français and Deutsch. Throughout Speed Week, we have talked about the importance of optimizing performance. Compression plays a crucial role by reducing file sizes transmitted over the Internet. Smaller ... more

Use the language of your choice with Pages Functions via WebAssembly

On the Cloudflare Developer Platform, we understand that building any application is a unique experience for every developer. We know that in the developer ecosystem there are a plethora of tools to choose from and as a developer you have preferences ... more

Node.js compatibility for Cloudflare Workers – starting with Async Context Tracking, EventEmitter, Buffer, assert, and util

Over the coming months, Cloudflare Workers will start to roll out built-in compatibility with Node.js core APIs as part of an effort to support increased compatibility across JavaScript runtimes. We are happy to announce today that the first of these ... more

Everything you might have missed during Security Week 2023

This post is also available in Español, Français, 简体中文, 日本語 and Deutsch. Security Week 2023 is officially in the books. In our welcome post last Saturday, I talked about Cloudflare’s years-long evolution from protecting websites, to protecting applications, ... more

How we built an open-source SEO tool using Workers, D1, and Queues

Building applications on Cloudflare Workers has always been fun. Workers applications have low latency response times by default, and easy developer ergonomics thanks to Wrangler. It's no surprise that for years now, developers have been going from idea ... more

How Rust and Wasm power Cloudflare's 1.1.1.1

On April 1, 2018, Cloudflare announced the 1.1.1.1 public DNS resolver. Over the years, we added the debug page for troubleshooting, global cache purge, 0 TTL for zones on Cloudflare, Upstream TLS, and 1.1.1.1 for families to the platform. In this post, ... more

ROFL with a LOL: rewriting an NGINX module in Rust

At Cloudflare, engineers spend a great deal of time refactoring or rewriting existing functionality. When your company doubles the amount of traffic it handles every year, what was once an elegant solution to a problem can quickly become outdated as ... more

So long, and thanks for all the deployments: deprecating Wrangler v1

Cloudflare Workers allow developers to deploy code instantly across the globe. Wrangler is the CLI tool we build (and use!) to create, modify, and upload Workers. We recently announced a new version of Wrangler with a bunch of new features – including ... more

Welcome to Wildebeest: the Fediverse on Cloudflare

The Fediverse has been a hot topic of discussion lately, with thousands, if not millions, of new users creating accounts on platforms like Mastodon to either move entirely to "the other side" or experiment and learn about this new social network. ... more

Cloudflare's handling of a bug in interpreting IPv4-mapped IPv6 addresses

In November 2022, our bug bounty program received a critical and very interesting report. The report stated that certain types of DNS records could be used to bypass some of our network policies and connect to ports on the loopback address (e.g. 127.0.0.1) ... more