2026-02-13
ecdysis is a Rust library enabling zero-downtime upgrades for network services. After five years protecting millions of connections at Cloudflare, it’s now open source....
2025-02-10
Cloudflare was recently contacted by researchers who discovered a broadcast amplification vulnerability through their QUIC Internet measurement research. We've implemented a mitigation....
2024-10-09
We realized that we need a way to automatically heal our platform from an operations perspective, and designed and built a workflow orchestration platform to provide these self-healing capabilities ...
2024-10-07
Great thermal solutions play a crucial role in hardware reliability and performance. Gen 12 servers have implemented an exhaustive thermal analysis to ensure optimal operations within a wide variety of temperature conditions and use cases. By implementing new design and control features for improved power efficiency on the compute nodes we also enabled the support of powerful accelerators to serve our customers....
2024-09-20
Cloudflare’s Capacity Planning team discusses planning for “what-if” type scenarios, and how they’ve introduced a new “Scenario Planner” system to quickly model hypothetical future changes...
2023-04-20
We split a proxy application into multiple services to improve development agility and reliability. This blog also shares some common patterns we are leveraging to design a system supporting zero-downtime restart...
2023-04-04
Deploying new versions of long-lived server software while maintaining a reliable experience is challenging. For oxy, we established several development and operational patterns to increase reliability and reduce friction in deployments...
2023-04-03
Deployment rollbacks provide users the ability to quickly visualize and deploy past versions of their Workers, providing even more confidence in the deployment pipeline...
2023-03-02
In this blog post, we are proud to introduce Oxy - our modern proxy framework, developed using the Rust programming language...
2022-11-18
With Segment Edge SDK, built on Cloudflare Workers, developers can collect high-quality first-party data and use Segment Edge SDK to access real-time user profiles and state, to deliver personalized ...
2022-11-17
With Cloudflare Workers, our fragment-based micro-frontend architecture, and fragment piercing technique, engineering teams can incrementally improve large frontends in a fraction of the time, yielding significant user and developer experience gains....
2022-11-17
Today we’re happy to announce Deployments for Workers. Deployments allow developers to audit changes made to their applications....
2022-08-05
We believe every developer deserves to dream big without breaking the bank. That's why on Cloudflare Pages you can get unlimited requests, bandwidth, seats and projects --- for free!...
2022-08-05
In this post we're going to show you how to build a scalable service that will schedule HTTP requests on a specific schedule or as one-off at a specific time ...
2022-03-17
Today, we’re excited to announce the general availability of on-demand packet captures from Cloudflare’s global network...
2021-07-28
When both Last-Modified and Etag headers are absent from the origin response, Smart Edge Revalidation will use the time the object was cached on Cloudflare as the Last-Modified header value. When ...
2021-01-27
How we automated data center expansions and cut by 90% the amount of time our team spent on tedious operational work....
2020-12-04
This blog is a quick Electrical Engineering 101 session going over specifically how 3-phase PDUs work, along with some good practices on how we use them...
2020-09-09
Unimog is the Layer 4 Load Balancer for Cloudflare’s edge data centers. This post explains the problems it solves and how it works....
2020-09-03
Page speed is critical. You need to get content to your audience as quickly as possible on every device. You also need to render ads in a speedy way to maintain a good user experience and make money to support your journalism....
