How Cloudflare mitigated yet another Okta compromise
How Cloudflare mitigated yet another Okta compromise2023-10-20 This post is also available in 简体中文, 繁體中文, 日本語 and 한국어. On Wednesday, October 18, 2023, we discovered attacks on our system that we were able to trace back to Okta – threat actors were able to leverage an authentication token compromised at Okta to pivot into Cloudflare’s Okta instance. While this was a troubling security incident, our
Introducing workerd: the Open Source Workers runtime
Introducing workerd: the Open Source Workers runtime2022-09-27 Today I'm proud to introduce the first beta release of workerd, the JavaScript/Wasm runtime based on the same code that powers Cloudflare Workers. workerd is Open Source under the Apache License version 2.0. workerd shares most of its code with the runtime that powers Cloudflare Workers, but with some changes designed to make it more p
Announcing Turnstile, a user-friendly, privacy-preserving alternative to CAPTCHA
This post is also available in 简体中文, 日本語, Français, Deutsch, Português and Español. Today, we’re announcing the open beta of Turnstile, an invisible alternative to CAPTCHA. Anyone, anywhere on the Internet, who wants to replace CAPTCHA on their site will be able to call a simple API, without having to be a Cloudflare customer or sending traffic through the Cloudflare global network. Sign up here f
Route to Workers, automate your email processing
Route to Workers, automate your email processing2022-05-13 Cloudflare Email Routing has quickly grown to a few hundred thousand users, and we’re incredibly excited with the number of feature requests that reach our product team every week. We hear you, we love the feedback, and we want to give you all that you’ve been asking for. What we don’t like is making you wait, or making you feel like your
Cloudflare待機室
本日、Cloudflare待機室をご紹介できることをうれしく思っております！まず、プロジェクトFair Shotという新プログラムで選ばれたお客様に最初にご利用いただけます。このプログラムは、新型コロナワクチン接種の圧倒的な需要によって、予約登録Webサイトが機能しなくなっている問題の解決を目的としています。BusinessプランとEnterpriseプランのお客様への一般提供については、近い将来行う予定です。 でも、待機室が楽しみってどういうことでしょうか？大半の方が、待機室がどういうところかをご存知のはずです。そこにいるということにうれしい要素は、ほぼありません。私たちがよく知っている待機室は、医師の診察を受ける前にいる部屋です。そうです、予約していても、医師に待たされたり、患者が遅れたりすることがありますね。医師は一度に1人の患者しか診ることができないため、患者が順番待ちをするという
Humanity wastes about 500 years per day on CAPTCHAs. It’s time to end this madness
Humanity wastes about 500 years per day on CAPTCHAs. It’s time to end this madness2021-05-13 Select all the buses. Click on bikes. Does this photo have traffic lights? As ridiculous as these questions are, you’re almost guaranteed to have seen one recently. They are a way for online services to separate humans from bots, and they’re called CAPTCHAs. CAPTCHAs strengthen the security of online servi
Durable Objects, now in Open Beta
Back in September, we announced Durable Objects - a new paradigm for stateful serverless. Since then, we’ve seen incredible demand and countless unlocked opportunities on our platform. We’ve watched large enterprises build applications from complex API features to real-time games in a matter of days from inception to launch. We’ve heard from developers that Durable Objects lets them spend time the
Workers Durable Objects Beta: A New Approach to Stateful Serverless
Workers Durable Objects Beta: A New Approach to Stateful Serverless2020-09-28 We launched Cloudflare Workers® in 2017 with a radical vision: code running at the network edge could not only improve performance, but also be easier to deploy and cheaper to run than code running in a single datacenter. That vision means Workers is about more than just edge compute -- we're rethinking how applications
Asynchronous HTMLRewriter for Cloudflare Workers
Last year, we launched HTMLRewriter for Cloudflare Workers, which enables developers to make streaming changes to HTML on the edge. Unlike a traditional DOM parser that loads the entire HTML document into memory, we developed a streaming parser written in Rust. Today, we’re announcing support for asynchronous handlers in HTMLRewriter. Now you can perform asynchronous tasks based on the content of
Serverless Performance: Cloudflare Workers, Lambda and Lambda@Edge
Serverless Performance: Cloudflare Workers, Lambda and Lambda@Edge2018-07-02 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. If it is truly the fastest, and it is comparable in price, it should be how every team deploys all of their serverless infrastructure. So I set ou
The History of the URL | The Cloudflare Blog
On the 11th of January 1982 twenty-two computer scientists met to discuss an issue with ‘computer mail’ (now known as email). Attendees included the guy who would create Sun Microsystems, the guy who made Zork, the NTP guy, and the guy who convinced the government to pay for Unix. The problem was simple: there were 455 hosts on the ARPANET and the situation was getting out of control. This issue w
JavaScript Libraries Are Almost Never Updated Once Installed
JavaScript Libraries Are Almost Never Updated Once Installed2020-01-27 Cloudflare helps run CDNJS, a very popular way of including JavaScript and other frontend resources on web pages. With the CDNJS team’s permission we collect anonymized and aggregated data from CDNJS requests which we use to understand how people build on the Internet. Our analysis today is focused on one question: once install
HTTP/3: the past, the present, and the future
HTTP/3: the past, the present, and the future2019-09-26 This post is also available in 简体中文, 日本語, 한국어, Français, Español. During last year’s Birthday Week we announced preliminary support for QUIC and HTTP/3 (or “HTTP over QUIC” as it was known back then), the new standard for the web, enabling faster, more reliable, and more secure connections to web endpoints like websites and APIs. We also let
Cloud Computing without Containers
Cloudflare has a cloud computing platform called Workers. Unlike essentially every other cloud computing platform I know of, it doesn’t use containers or virtual machines. We believe that is the future of Serverless and cloud computing in general, and I’ll try to convince you why. Two years ago we had a problem. We were limited in how many features and options we could build in-house, we needed a
Everyone can now run JavaScript on Cloudflare with Workers
This post is also available in 日本語. Exactly one year ago today, Cloudflare gave me a mission: Make it so people can run code on Cloudflare's edge. At the time, we didn't yet know what that would mean. Would it be container-based? A new Turing-incomplete domain-specific language? Lua? "Functions"? There were lots of ideas. Eventually, we settled on what now seems the obvious choice: JavaScript, usi
TLS 1.3 is going to save us all, and other reasons why IoT is still insecure
TLS 1.3 is going to save us all, and other reasons why IoT is still insecure2017-12-24 As I’m writing this, four DDoS attacks are ongoing and being automatically mitigated by Gatebot. Cloudflare’s job is to get attacked. Our network gets attacked constantly. Around the fall of 2016, we started seeing DDoS attacks that looked a little different than usual. One attack we saw around that time had tra
cloudflare-ingress-controller
NOTE: Prior to launch, this product was renamed Argo Tunnel. Read more in the launch announcement. It’s ironic that the one thing most programmers would really rather not have to spend time dealing with is... a computer. When you write code it’s written in your head, transferred to a screen with your fingers and then it has to be run. On. A. Computer. Ugh. Of course, code has to be run and typed o
Announcing Support for HTTP/2 Server Push
Last November, we rolled out HTTP/2 support for all our customers. At the time, HTTP/2 was not in wide use, but more than 88k of the Alexa 2 million websites are now HTTP/2-enabled. Today, more than 70% of sites that use HTTP/2 are served via CloudFlare. CC BY 2.0 image by Roger Price HTTP/2’s main benefit is multiplexing, which allows multiple HTTP requests to share a single TCP connection. This
HTTP/2 For Web Developers
HTTP/2 changes the way web developers optimize their websites. In HTTP/1.1, it’s become common practice to eek out an extra 5% of page load speed by hacking away at your TCP connections and HTTP requests with techniques like spriting, inlining, domain sharding, and concatenation. Life’s a little bit easier in HTTP/2. It gives the typical website a 30% performance gain without a complicated build a
HTTP/2 is here! Goodbye SPDY? Not quite yet
Why choose, if you can have both? Today CloudFlare is introducing HTTP/2 support for all customers using SSL/TLS connections, while still supporting SPDY. There is no need to make a decision between SPDY or HTTP/2. Both are automatically there for you and your customers. If you are a customer on the Free or Pro plan, there is no need to do anything at all. Both SPDY and HTTP/2 are already enabled
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