974 articles on Performance.
Fluid Compute outperforms Cloudflare Workers by 1.2x–5x in server-side rendering benchmarks, offering faster, more consistent response times through an optimized in-region architecture.
In September, we experienced three incidents that resulted in degraded performance across GitHub services.
It’s mid 2023 and we’ve identified some opportunities to improve our reliability. Fast forward to January 2025. Customer impact hours are reduced from the peak by 90% and continuing to trend downward. We’re a year and half into the Deploy Safety Program at Slack, improving the way we deploy, uplifting our safety culture and continuing…
Cloudflare is using its vast traffic to send responses faster than ever before, by learning the characteristics of each individual network and tuning our congestion control system.
We’ve replaced the original core system in Cloudflare with a new modular Rust-based proxy, replacing NGINX. It’s not only substantially faster for all our customers, it’s also more secure, and lets us ship new products quicker than ever before.
Today, we’re announcing two enhancements to our Application Performance suite. Observatory and Smart Shield allow you to see how the world sees your website, and make it faster with one click. Available inside the Cloudflare Dashboard today!
On the Internet, being fast is what matters and at Cloudflare, we are committed to being the fastest network in the world. In this post, we will share how our network performance has changed since our last post in September 2024, and discuss the tools and processes we are using to assess network performance.
We're making it easier for developers to build amazing things, by introducing major upgrades like external model support in AI Search (previously AutoRAG), updates to Node.js compatibility, support for larger and more concurrent container instances, and more! Plus, new tools like, transactional email, and GAed support for Workers Builds, Media Transformations, and Browser Rendering with Playwright
This blog lets you test the RETURNING clause with updates in PostgreSQL 18, and allows you to have a look at practical scenario.
Learn about a new Copilot embedding model that makes code search in VS Code faster, lighter on memory, and far more accurate.
Git Merge 2025 isn’t just about celebrating 20 years of Git – it’s about what comes next. In this post, we’re highlighting some of the talks and speakers shaping Git’s future, from performance wins and new backends to surprising use cases and the impact of AI coding agents.
We replaced slow JSON path lookups with Bloom filters in our global routing service, cutting memory usage by 15% and reducing 99th percentile lookup times from hundreds of milliseconds to under 1 ms. Here’s how we did it.
We’ve updated our renderer to use WebGPU, unlocking new performance optimization opportunities. Here’s how we did it.
As responsible digital professionals, we are becoming increasingly aware of the environmental impact of our work and need to find effective and pragmatic ways to reduce it. James Chudley shares a new decarbonising approach that will help you to minimise the environmental impact of your website, benefiting people, profit, purpose, performance, and the planet.
Learn how Vercel solves serverless cold starts with scale to one, Fluid compute, predictive scaling, and caching to keep functions warm and fast.
We’re excited to announce the start of a major upgrade to Cloudflare’s performance analytics suite: Web Analytics as part of our real user monitoring (RUM) tools will soon be combined with network-level insights to help you pinpoint performance issues anywhere on a packet’s journey — from a visitor’s browser, through Cloudflare’s network, to your origin.
This blog is a quick summary of the recent benchmark testing done with PostgresSQL for TDE. Please check in.
In August, we experienced three incidents that resulted in degraded performance across GitHub services.
With more teams moving faster than ever, the real differentiator is craft—the curiosity, intuition, taste, and intention behind every detail.
We're at a critical inflection point where conversational AI is moving from experimental demos to production-ready systems. If you’re already a developer in the real-time AI ecosystem, we want to build the best building blocks for you to get the lowest latency at a global scale.
Troubleshoot network connectivity issues by using Cloudflare AI-Power to quickly self diagnose and resolve WARP client and network issues.
Existing LLM serving engines aren’t efficient enough when deployed across a globally distributed network, so we built our own, in Rust. Infire is an LLM inference engine that employs a range of techniques to maximize resource utilization, allowing us to serve AI models more efficiently and with better performance for Cloudflare workloads.
We're expanding Workers AI with new partner models from Leonardo.Ai and Deepgram. Start using state-of-the-art image generation models from Leonardo (Phoenix, Lucid Origin) and real-time TTS and STT models from Deepgram (Nova 3, Aura 1). Build full-stack, low-latency AI applications, all hosted on Cloudflare's global network.
The Kotlin incremental compiler has been a true gem for developers chasing faster compilation since its introduction in build tools. Now, we’re excited to bring its benefits to Buck2 – Meta’s build system – to unlock even more speed and efficiency for Kotlin developers. Unlike a traditional compiler that recompiles an entire module every time, […]
For years, developers have been stitching together multiple protocols for real-time media, trading latency for scale and simplicity. Media over QUIC (MoQ) is a new IETF standard that resolves this conflict, creating a single foundation for sub-second, interactive streaming at a global scale.
AI tools are improving fast, but it’s still not clear how they fit into a real product design workflow. Nikita Samutin walks through four core stages — from analytics and ideation to prototyping and visual design — to show where AI fits and where it doesn’t, illustrated with real-world examples.
There are news! Cool Bear's hot tip TL;DR: If you’re a patron or sponsor, check your Profile page to get detailed explainers of every perk. You’ll need to log in. Duh. Here are all the changes I’m implementing, summarized as a table: Before After 📚 Articles remain exclusive for 6 months Early access ( couple weeks ) for Silver tier 🎞️ No early access for video Video early access on Patreon and web
In July, we experienced one incident that resulted in degraded performance across GitHub services.
Design systems are more than style guides: they’re made up of workflows, tokens, components, and documentation — all the stuff teams rely on to build consistent products. As projects grow, keeping everything in sync gets tricky fast. In this article, we’ll look at how smart tooling, combined with automation where it makes sense, can speed things up, reduce errors, and help your team focus on desig
We significantly sped up our privacy proxy service by fixing a 40ms delay in "double-spend" checks. The issue stemmed from how Nagle's algorithm and delayed ACKs interacted with a third-party dependency.
FlashList v2 is a complete rewrite, delivering faster load times, improved scrolling performance, and precise rendering without requiring item size estimates. It powers thousands of lists in the Shopify mobile app and is now production-ready.
Solara6 is partnering with us to help ecommerce brands ship faster and deploy with confidence. Through this partnership, ecommerce teams working with Solara6 can expect improved SEO, site speed, and reliability during peak traffic moments.
In June, we experienced three incidents that resulted in degraded performance across GitHub services.
Traditional page builders have shaped how we build WordPress sites for years. Let’s take a closer look at [Droip](https://droip.com/), a modern, no-code visual builder, and explore how it redefines the experience with cleaner performance, full design freedom, and zero plugin dependency.
Learn how we just made Shopify's Admin 30% faster while setting it up for AI superpowers. Behind the scenes, we completely transformed how admin.shopify.com works—rebuilding a system that powers 67 million daily page views and merchants live inside to run their business.
ResizeObserver, MutationObserver, and IntersectionObserver enhance performance over their predecessors. Zell discusses their API similarities, usage steps, refactoring strategies, and advantages with practical examples.
In May, we experienced three incidents that resulted in degraded performance across GitHub services.
I have long been at war against Rust compile times. Part of the solution for me was to buy my way into Apple Silicon dreamland, where builds are, like… faster. I remember every time I SSH into an x86_64 server, even the nice 64-core ones. And another part was, of course, to get dirty with Rust itself. I wrote Why is my Rust build so slow? , which goes in-depth into rust build performance, down to
What’s the best way to make your SVGs faster, simpler, and more manageable? In this article, pioneering author and web designer Andy Clarke explains the process he relies on *to* prepare, optimise, and structure SVGs for animation and beyond.
Designers love to craft, but polishing pixels before the problem is solved is a time-sink. This article pinpoints the five traps that lure us into premature detail — being afraid to show rough work, fixing symptoms instead of causes, solving the wrong problem, drowning in unactionable feedback, and plain fatigue — then hands you a four-step rescue plan to refocus on goals, ship faster, and keep yo
Learn how v0's composite AI models combine RAG, frontier LLMs, and AutoFix to build accurate, up-to-date web app code with fewer errors and faster output.
Import maps are great for both performance and developer experience, but their original limitations made them hard to use, especially at Shopify’s scale. We stepped up and pushed changes across the HTML spec, Chromium and WebKit to fix these issues at the web platform level. Now, developers can interleave JavaScript modules and multiple import maps on their HTML pages without worrying about correc
Developers have a gut-felt understanding for performance, but that intuition breaks down when systems reach Cloudflare’s scale. We need the rigor of statisticians to understand latency’s impact on users. Here we discuss our work to communicate customer-centric measurements of latency in our network.
Last week at Stripe Sessions, we introduced our Payments Intelligence Suite, which uses AI to make hundreds of automated, real-time decisions to maximize your profits—with no effort required.
In April, we experienced three incidents that resulted in degraded performance across GitHub services.
Figma Draw pairs faster, simpler vector editing with powerful tools for visual expression—so designers of all stripes can bring their vision to life without breaking focus.
We built a framework that transforms WebViews in the Shopify app to feel native and solve performance and integration challenges without rebuilding for mobile.
In March, we experienced one incident that resulted in degraded performance across GitHub services.
In the world of DevOps and Developer Experience (DevXP), speed and efficiency can make a big difference on an engineer’s day-to-day tasks. Today, we’ll dive into how Slack’s DevXP team took some existing tools and used them to optimize an end-to-end (E2E) testing pipeline. This lowered build times and reduced redundant processes, saving both time…
We migrated grep.app from Create React App to Next.js. We break down how we combined single-page app speed with React Server Component efficiency. 70% faster First Contentful Paint, 73% quicker network request completion, now searching 1M repos.
