How Netflix Runs on Java?

Kubernetes Quick-Start Guide (Sponsored)Cut through the noise with this engineer-friendly guide to Kubernetes observability. Get a fast-track reference to essential kubectl commands and critical metrics — from disk I/O and network latency to real-time cluster events. Perfect for scaling, debugging, and tuning your workloads without sifting through endless docs. Get the cheatsheet ...

June 3, 2025

Learning to clarify: Multi-turn conversations with Action-Based Contrastive Self-Training

June 3, 2025

Bridge Types

June 2, 2025

EP165: AI Agent versus MCP

✂️Cut your QA cycles down to minutes with QA Wolf (Sponsored)If slow QA processes bottleneck you or your software engineering team and you’re releasing slower because of it — you need to check out QA Wolf. QA Wolf’s AI-native service supports web and mobile apps, delivering 80% automated test coverage in weeks and helping teams ship 5x faster by reducing QA cycles to minutes. ...

May 31, 2025

Check Engine

May 30, 2025

Cloudflare named a Strong Performer in Email Security by Forrester

Today, we are excited to announce that Forrester has recognized Cloudflare Email Security as a Strong Performer and among the top three providers in the ‘current offering’ category in “The Forrester Wave™: Email, Messaging, And Collaboration Security Solutions, Q2 2025” report. Get a complimentary copy of the report here. According to Forrester: “Cloudflare is a solid choice for organizations looking to augment current email, messaging, and collaboration security tooling with deep content analysis and processing and malware detection capabilities.” ...

May 30, 2025

A Deep Dive into HTTP: From HTTP 1 to HTTP 3

HTTP is the backbone of modern internet communication, powering everything from browser requests to microservices inside Kubernetes clusters.  Every time a browser loads a page, every time an app fetches an API response, every time a backend service queries another, it’s almost always over HTTP. That’s true even when the underlying transport changes. gRPC, for example, wraps itself around HTTP/2. RESTful APIs, which dominate backend design, are just a convention built on top of HTTP verbs and status codes. CDNs, caches, proxies, and gateways optimize around HTTP behavior. ...

May 29, 2025

Let’s DO this: detecting Workers Builds errors across 1 million Durable Objects

Cloudflare Workers Builds is our CI/CD product that makes it easy to build and deploy Workers applications every time code is pushed to GitHub or GitLab. What makes Workers Builds special is that projects can be built and deployed with minimal configuration. Just hook up your project and let us take care of the rest! But what happens when things go wrong, such as failing to install tools or dependencies? What usually happens is that we don’t fix the problem until a customer contacts us about it, at which point many other customers have likely faced the same issue. This can be a frustrating experience for both us and our customers because of the lag time between issues occurring and us fixing them. ...

May 29, 2025

Archaea

May 28, 2025

How Amazon Key Opens 100 Million Doors Every Year

Note: This article is written in collaboration with the engineering team of Amazon Key. Special thanks to Kaushik Mani (Director at Amazon) and Vijay Nagarajan (Engineering Leader) from Amazon Key for walking us through the architecture and challenges they faced while building this system.  All credit for the technical details and diagrams shared in this article goes to the Amazon Key Engineering Team.  Picture a customer buzzing with excitement for their package, only to find a "delivery failed" slip because a locked gate stood in the way. ...

May 28, 2025