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In 2024 and 2025, we reassessed remote Spectre attacks on our Workers infrastructure. We share details about the new attack primitives like Spectre gadgets, remote timers, achieving co-location and how new defenses further harden Cloudflare Workers.
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.
Cloudflare was recently contacted by researchers who discovered a broadcast amplification vulnerability through their QUIC Internet measurement research. We've implemented a mitigation.
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
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.
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
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
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
Deployment rollbacks provide users the ability to quickly visualize and deploy past versions of their Workers, providing even more confidence in the deployment pipeline
In this blog post, we are proud to introduce Oxy - our modern proxy framework, developed using the Rust programming language
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
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.
Today we’re happy to announce Deployments for Workers. Deployments allow developers to audit changes made to their applications.
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!
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
Today, we’re excited to announce the general availability of on-demand packet captures from Cloudflare’s global network
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
Alex Krivit and Yuchen Wu
How we automated data center expansions and cut by 90% the amount of time our team spent on tedious operational work.
