Technical deep dives, product updates, and insights from the teams that are helping to build a better Internet.
Visit blog.cloudflare.com → RSS feedOn Hacker News Jun 2011 – Nov 2026
Networking & Internet 106Security & Privacy 101Infrastructure & DevOps 77Web & Frontend 75Systems & Performance 64Software Engineering 53
Durable Objects provide a truly serverless approach to storage and state: consistent, low-latency, distributed, yet effortless to maintain and scale. They also enable coordination and real-time collaboration between clients.
We're thrilled to announce that PartyKit, a trailblazer in enabling developers to craft ambitious real-time, collaborative, multiplayer applications, is now a part of Cloudflare
We are launching Workers Cache, a regionally tiered cache that sits directly in front of your Worker entrypoints. Infinitely composable, configured via standard HTTP headers
Two summers ago, with a seemed-big-at-the-time network of 28 datacenters, not long after introducing Medellin, CloudFlare introduced support for WebSockets, initially for our Enterprise customers.
Now that we’ve eliminated CAPTCHAs at Cloudflare, we want to hasten the demise of CAPTCHAs across the internet. We’re thrilled to announce that Turnstile is generally available, and Turnstile’s ‘Managed’ mode is now completely free to everyone for unlimited use.
The promise of the AMP (Accelerated Mobile Pages) project was that it would make the web, and, in particular, the mobile web, much more pleasant to surf. The AMP HTML framework was designed to make web pages load quickly.
Upgrading a security protocol in an ecosystem as complex as the Internet is difficult. You need to update clients and servers and make sure everything in between continues to work correctly. The Internet is in the middle of such an upgrade right now.
Today, we're extending Cloudflare Workers with support for WebAssembly. All Workers customers can now augment their applications with WASM at no additional cost.
Late last year, the CloudFlare UI team made a huge decision: to change JavaScript frameworks from Backbone & Marionette to React & Redux.
Today, we are launching Cloudflare Images for all customers. Images provides a single product to store, resize and serve images. We built Cloudflare Images, so customers of all sizes can build a scalable and affordable image pipeline with a fraction of the effort.
Advancing the state of the art of HTTP/2 to deliver a faster user experience. See why it matters and how much of a differenc
CloudFlare recently rolled out a premium service called Railgun that's available to CloudFlare Business and Enterprise customers. Railgun is web optimization software that's designed to speed up the delivery of content that cannot be cached.
I'm pleased to announce that CloudFlare now supports WebSockets. The ability to protect and accelerate WebSockets has been one of our most requested features.
After the recent announcement regarding WASI support in Workers I decided to see what it would take to get code written in Zig to run as a Worker, and it turned out to be pretty trivial. This post documents the process I followed
Ladies and gentlemen, I would like you to welcome the new shiny RFC8482, which effectively deprecates DNS ANY query type. DNS ANY was a "meta-query" - think about it as a similar thing to the common A, AAAA, MX or SRV query types, but unlike these it wasn't a real query type - it was special.
Any website can use a simple API to replace CAPTCHAs with our invisible alternative, whether they’re on the Cloudflare network or not.
A few months ago we released a new way for people to run serverless Javascript called Cloudflare Workers. We believe Workers is the fastest way to execute serverless functions, but lets prove it.
As of today, there are only about 2 million websites that support HTTPS. That's a shamefully low number. Two things are about to happen that we at CloudFlare are hopeful will begin to change that and make everyone love locks (at least on the web!).
polyfill.io, a popular JavaScript library service, can no longer be trusted and should be removed from websites
Vary support is now available in Cache Rules on every plan. You can normalize known negotiation headers, pass exact values through to the origin when those small differences matter, or bypass cache when the variation is too unpredictable.
Over the last week we've closely watched the disclosures about the alleged NSA PRISM program. At CloudFlare, we have never been approached to participate in PRISM or any other similar program.
Recent advancements in Cloudflare Python Workers means fast cold starts, comprehensive package support, and a great developer experience. We explain how they were achieved and show how Python can be used to build serverless applications on Cloudflare.
Today, we are excited to announce Cloudflare's Ethereum Gateway, where you can interact with the Ethereum network without installing any software on your computer.
Today, we are introducing WebGPU support to Cloudflare Workers. This blog will explain why it's important, why we did it, how you can use it, and what comes next
Cloudflare has deployed default web application firewall (WAF) protections for newly disclosed PHP vulnerabilities before public disclosure. The rules use request and response signals to stop exploit attempts and prevent exposed data from reaching attackers.
Cloudflare Zaraz now can also help you with gathering and managing consent. With this new tool, you can easily collect user’s consent preferences on your website, using a consent modal, and apply your consent policy on third-party tools you load via Cloudflare Zaraz
This post is a part of an ongoing series comparing the performance of Cloudflare Workers with other Serverless providers. In our past tests we intentionally chose a workload which imposes virtually no CPU load (returning the current time).
Today, we’re excited to open up a beta of a third approach to keeping web browsing safe with Cloudflare Browser Isolation.
We are working really hard to allow you to deploy Workers without having a Cloudflare domain. You will soon be able to deploy your Cloudflare Workers to a subdomain-of-your-choice.workers.dev, which you can go claim now on workers.dev!
CloudFlare protects millions of websites from online threats. One of the oldest and most pervasive attacks launched against websites is the Distributed Denial of Service (DDoS) attack.