Three chapters at Cloudflare: Programmer to CTO to Board of Directors
2025-03-27
Today, after more than 13 years at the company, I am joining Cloudflare’s board of directors and retiring from my full-time position as CTO. ...
Automatically replacing polyfill.io links with Cloudflare’s mirror for a safer Internet
2024-06-26
CDNJSJavaScriptVulnerabilitiesApplication SecurityApplication ServicesSupply Chain AttacksAttacksBetter Internet
polyfill.io, a popular JavaScript library service, can no longer be trusted and should be removed from websites...
Using Fortran on Cloudflare Workers
2024-05-07
Work on LLVM has enabled Fortran to compile to WebAssembly. So, today, we’re writing about running Fortran code on Cloudflare Workers...
Major data center power failure (again): Cloudflare Code Orange tested
2024-04-08
Just four months after a complete power outage at a critical data center we were hit with the exact same scenario. Here’s how we did this time, and what’s next...
Thanksgiving 2023 security incident
2024-02-01
On Thanksgiving Day, November 23, 2023, Cloudflare detected a threat actor on our self-hosted Atlassian server. Our security team immediately began an investigation, cut off the threat actor’s access, and no Cloudflare customer data or systems were impacted by this event...
Writing poems using LLama 2 on Workers AI
2023-09-27
Matthew and Michelle, co-founders of Cloudflare, published their annual founders’ letter today. The letter ends with a poem written by an AI running using Workers AI on Cloudflare’s global network....
Welcome to Birthday Week 2023
2023-09-24
Building the future is, in part, what Birthday Week is about. Over the past 13 years we’ve announced things like Universal SSL (doubling the size of the encrypted web overnight), or Cloudflare Workers (helping change the way people build and scale applications). This year will be no different...
Batteries included: how AI will transform the who and how of programming
2023-05-14
The recent arrival of LLMs capable of assisting programmers in writing, debugging and modifying code is yet another step. It’s a step at both making programmers more productive and helping more people be programmers...
Welcome to the Supercloud (and Developer Week 2022)
2022-11-14
Every developer wants to get code running on one machine and perfect it. It’s so much easier to work that way. We just happen to have one machine that scales to the size of the Internet: a global, distributed, supercomputer. It’s our Supercloud, and we build our own products on it, and you can too...
Partial Cloudflare outage on October 25, 2022
2022-10-26
Today, a change to our Tiered Cache system caused some requests to fail for users with status code 530...
What we served up for the last Birthday Week before we're a teenager
2022-10-03
Cloudflare's 12th birthday week: 36 announcements ranging from SIM cards to post quantum encryption via hardware keys and so much more. Here’s a review of everything we announced this week...
GA Week 2022: what you may have missed
2022-09-23
We made a lot of new products Generally Available this week, so in case you missed it, here’s a recap...
Welcome to GA Week
2022-09-18
Over the course of the next week, you’re going to hear about Cloudflare products that are out of beta and generally available...
A July 4 technical reading list
2022-07-04
Here’s a short list of recent technical blog posts to give you something to read today...
Cloudflare’s investigation of the January 2022 Okta compromise
2022-03-22
Today at 03:30 UTC we learnt of a compromise of Okta. We use Okta internally for employee identity as part of our authentication stack. We have investigated this compromise carefully and do not believe we have been compromised as a result...
Internet traffic patterns in Ukraine since February 21, 2022
2022-03-04
Cloudflare operates in more than 250 cities worldwide where we connect our equipment to the Internet to provide our broad range of services...
Why we are acquiring Area 1
2022-02-23
Earlier today we announced that Cloudflare has agreed to acquire Area 1 Security...
Adding a CASB to Cloudflare Zero Trust
2022-02-10
Earlier today, Cloudflare announced that we have acquired Vectrix, a cloud-access security broker (CASB) company focused on solving the problem of control and visibility in the SaaS applications and public cloud providers that your team uses...
Cloudflare Innovation Weeks 2021
2022-01-07
Birthday WeekCIO WeekDeveloper WeekFull Stack WeekImpact WeekPrivacy WeekSecurity WeekSpeed WeekProduct NewsDevelopers
As we start planning our 2022 Innovation Weeks, we are reflecting back on the highlights from each of these weeks...
Exploitation of Log4j CVE-2021-44228 before public disclosure and evolution of evasion and exfiltration
2021-12-14
This article covers WAF evasion patterns and exfiltration attempts, trend data on attempted exploitation, and information on exploitation that we saw prior to the public disclosure of CVE-2021-44228....
