From 2,500 requests to 24: Rebuilding star history without the stargazers
Our new repo star history API now provides trends without returning individual identities or requiring unbounded database work. These are the engineering tradeoffs we made.
GitHub availability report: September 2026
In September, we experienced two incidents that resulted in degraded performance across GitHub services.
Rewinding the exponential: How we keep hardware usage down
Our strategies to optimize our data pipeline throughput without compromising data quality.
Introducing on-demand CPU and memory profiling with flamegraphs for Workers and Durable Objects
On-demand CPU and memory profiling for Cloudflare Workers and Durable Objects is now available. Now you can generate interactive flamegraphs directly in production to quickly track down memory leaks and performance bottlenecks.
How Rillet ships 3× faster with AI agents on Vercel
Building Git infrastructure for agent-scale development
We're rebuilding GitHub's Git infrastructure while GitHub keeps running, creating a foundation for agent-scale software development.
2026 Birthday week: network performance update
Cloudflare now ranks as the fastest provider across 74% of the top 1,000 global networks. By incorporating background telemetry from Cloudflare Challenge Pages, we have expanded our real-user measurement scale while maintaining user privacy.
How fast is the web? Explore billions of real-user measurements with BEACON
Cloudflare is open-sourcing the BEACON dataset, making billions of anonymized Real User Monitoring (RUM) performance records publicly available on Google BigQuery. Explore real-world Core Web Vitals, soft navigation metrics, and performance breakdowns across browsers and regions.
Four months of VoidZero at Cloudflare: making the open-source JavaScript toolchain faster for all humans and agents
Since joining Cloudflare, VoidZero has delivered more than 80 releases that drastically speed up JavaScript compilation, linting, and testing. From a 10x faster React compiler to Vite+ 1.0, here’s how we are building faster tools for developers and AI agents.
Improving site performance by shipping more CSS
A look at how a design system shipped major changes without breaking the world.
Open-Sourcing Rebalancer: A Generic, High-Performance Library for Solving Assignment Problems
We’re open-sourcing Rebalancer, the assignment-problem solver that has been used to solve resource allocation problems throughout Meta for over nine years. Rebalancer separates several related concerns: how to specify an assignment problem, how to store it efficiently in memory, how to solve it, and how to debug it. This separation of concerns is crucial to [...] Read More... The post Open-Sourcin
GitHub availability report: August 2026
In August, we experienced five incidents that resulted in degraded performance across GitHub services.
How we cut CDN metadata lookup latency by 91%
The Cloudflare Blog – Brought to you by EmDash
We migrated the Cloudflare Blog to EmDash to prove our stack at massive scale. Here is how we stress-tested performance, safely routed production traffic, and redesigned the frontend experience.
Five monetization trends from global pricing leaders
As AI transforms software economics, the standard revenue playbook is breaking down. Learn how leaders around the world are preparing for agent buyers, updating processes for faster pricing iteration, and building more flexible infrastructure.
Gisting: Compressing LLM Agent context to ↑ throughput and ↓ cost (2026) - Shopify
Gisting compresses context into a set of learned tokens, preserving its quality while making the model faster and cheaper.
Personalization strategies that power ecommerce growth
Learn how to implement high-performance personalization with Next.js and Vercel. Discover best practices, avoid common pitfalls, and deliver fast, scalable, and revenue-driving ecommerce experiences without sacrificing speed or user experience.
How to move fast toward the right thing
With AI, speed comes easy, but so does tech debt. That’s why the best teams don’t just ship something fast; they consider it carefully, build it efficiently, and make it stand out.
GitHub availability report: July 2026
In July, we experienced eight incidents that resulted in degraded performance across GitHub services.
The Agent Development Lifecycle has arrived on Cloudflare
Agents can write code faster than teams can review, deploy, and maintain it. Today we’re introducing the Agent Development Lifecycle and the Cloudflare primitives that underpin it.
Next.js 16.3 support on Vercel
Next.js 16.3 applications on Vercel send 45% fewer prefetch requests, 17% fewer static assets, and have 2x faster path metadata serving.
Your agent needs a computer, not a container — introducing @cloudflare/computer
Agents need more than just a container to scale. We're introducing @cloudflare/computer, an agent runtime that dynamically orchestrates between fast, efficient isolates and full Linux containers to give every agent a computer of its own.
Smaller, faster, safer: running Kimi and GLM at scale
Serving frontier models like Kimi and GLM means fighting for GPU memory. Here's how we quantize KV caches, compress model weights, and add integrity checks to serve them faster, cheaper, and safely.
Don’t stop early: Case-folding source code at memory speed
How a branch-free loop and byte-space arithmetic let GitHub case-fold every byte of code search at >45 GiB/s on a single core.
Shopify and Vercel are rebuilding Hydrogen for faster storefronts
Data Lineage in PostgreSQL 19: Finally, an Answer When the CFO Asks "Where Did This Number Come From?"
This blog explores Data Lineage using SQL/PGQ in PostgreSQL 19, with real life examples that can enhance your learning.
Vercel launches partner certification
Vercel introduces the inaugural cohort of Vercel Certified Solution Partners. These industry-leading teams share our commitment to creating a faster, more accessible, and innovative web for our customers.
Understanding Vercel Functions
Learn about how Vercel Functions help you run secure, highly available, and fast compute.
The Orchestrator's Tax
Subagents get justified by time saved and parallel execution, but that's not what matters most in long-running multi-agent work. Every token in the orchestrator's context is competing for its attention, and the real value of a subagent is what it keeps out of that context, not how fast it runs. I argue that subagents should be treated as a tool for protecting the orchestrator's working memory, off
Upgrading Checkout Blocks app to Polaris web components (2026) - Shopify
We moved five high-traffic checkout extensions to remote-dom and Polaris web components, cutting bundle sizes drastically and making checkout faster.
DSLs Enable Reliable Use of LLMs
LLMs generate code incredibly fast, but to ensure they generate exactly what is intended, they need clear boundaries. Abstractions and Domain-Specific Languages (DSLs) provide a strong harness that guides LLMs right from the start. The example of Tickloom - a domain model and DSL for illustrating distributed system behavior - shows how we can use an LLM as a partner to iteratively build a DSL and
How Decagon uses AI for design system saturation
The fast-growing customer experience platform explains how Figma MCP and Figma Make helped them scale a new design system and keep pace with customer requests.
GPT-5.6 is now available in Figma Make
With accurate first results and fast iterations, OpenAI's GPT-5.6 gives your builds a strong start in Figma Make.
How to keep design teams steady through constant change
Design leader Jen Dunnam offers her advice for this new age of AI—from building a strong team to how to think about speed.
GitHub availability report: June 2026
In June, we experienced six incidents that resulted in degraded performance across GitHub services.
Q1 2026 Innovation Graph update: Open source collaboration is accelerating worldwide
New Innovation Graph data shows global developer communities growing faster than ever, with collaboration reaching new highs across many economies.
Meet Kirki: WordPress’s First Visual Builder With An Infinite Canvas — Smashing Magazine
We have been building websites inside boxes for years on WordPress. Let’s take a closer look at [Kirki](https://kirki.com/), the first freeform visual builder with an infinite canvas, and explore how it redefines the experience with cleaner performance, full design freedom, and zero plugin dependency.
How to build scalable AI applications
Explore AI integration strategies with Vercel's AI SDK. Learn to choose providers, optimize performance, and future-proof your apps. Discover tools for seamless AI deployment and scalability.
You can just ship agents
Vercel AI Cloud combines unified model routing and failover, elastic cost-efficient compute that only bills for active CPU time, isolated execution for untrusted code, and workflow durability that survives restarts, deploys, and long pauses.
Vercel Ship 2025 recap
Vercel Ship 2025 added new building blocks for an AI era: Fast, flexible, and secure by default. Lower costs with Fluid's Active CPU pricing, Rolling Releases for safer deployments, invisible CAPTCHA with BotID. See these and more in our recap.
Introducing Fluid compute: The power of servers, in serverless form
Fluid compute on Vercel combines serverless efficiency with server-like flexibility, reducing cold starts and cutting compute costs by up to 85%. Scale intelligently, minimize latency, and optimize performance with zero config.
Life of a Vercel request: Navigating the Edge Network
Unpacking the core usage metrics of Edge Requests and Fast Data Transfer. Learn how Vercel handles network routing and data transfer—while giving you full control over performance and costs.
Cline now runs on Vercel AI Gateway
Cline scales its open source coding agent with Vercel AI Gateway, delivering global performance, transparent pricing, and enterprise reliability.
Images on the web
Learn about the differences between the image formats JPEG, PNG, WebP, and AVIF with regards to compression techniques, resolution capabilities, pixel density, and effects on user experience for optimal web performance.
How to prompt v0
The best v0 prompts include three things. What you're building, who uses it and when, and your design constraints. This guide walks through the framework with side-by-side tests showing faster generation times, less code, and better UX decisions.
We Ralph Wiggumed WebStreams to make them 10x faster
WebStreams had too much overhead on the server. We built a faster implementation. See how we achieved 10-14x gains in Next.js rendering benchmarks.
Building the Black Friday-Cyber Monday live dashboard
See how we built the data-heavy Black Friday-Cyber Monday dashboard to be cost-efficient, fast, and accurate. Building a data-heavy, real-time dashboard with a good user experience comes with challenges. Let's walk through how we overcame them.
Introducing Active CPU pricing for Fluid compute
Fluid compute now uses Active CPU pricing. Only pay CPU rates when your function is actively computing. Building on existing Fluid gains, this brings additional savings of up to 90% for workloads like LLM calls, AI agents, or tasks with idle time.
Build realtime voice agents on AI Gateway
Audio/voice support is live on AI Gateway, with realtime. Build realtime, low-latency voice agents with the AI SDK on Vercel AI Gateway, plus text to speech and speech to text behind one API key and your existing tooling.
Too many tables are bad for you
This article shows that problems that too many tables in a single PostgreSQL database can cause and how to deal with these problems.
Why Accessibility Is An Operational Capability, Not A Feature — Smashing Magazine
Teams can generate UI faster than ever, but they still have to guarantee that what they ship is usable, secure, and maintainable. Accessibility as an operational capability rather than a compliance checklist or end-of-project audit, and what that looks like in practice.
Run any Dockerfile on Vercel
Vercel now runs any HTTP server straight from a Dockerfile. Bring a Rails, Django, Spring Boot, or Go app and Vercel builds, deploys, autoscales, and runs it on Fluid compute with Active CPU pricing.
Vercel Flags: Platform-native feature flags
Vercel Flags is a platform-native feature flag provider built into the Vercel developer platform, server-side by default with zero impact on page performance.
Vercel welcomes Rich Harris, creator of Svelte
We're excited to share Rich Harris, the creator of Svelte, has joined Vercel to make the Web. Faster.
Improving performance in the layers panel
We rearchitected the layers panel with new computation and caching strategies, resulting in 30–50% faster interactions in some of the largest, most complex files.
GitHub availability report: May 2026
In May, we experienced nine incidents that resulted in degraded performance across GitHub services.
Steal this template: Bring a user persona to life with Figma Weave
Lead Product Designer at Dropbox Sara Clayton used Figma Weave to add dimension to an Ideal Customer Profile in under two minutes. Steal her template to make your users feel real.
Defend against frontier cyber models: Cloudflare's architecture as customer zero
In our post about Project Glasswing, we made the argument that the architecture around a vulnerability matters more than the speed of the patch. Here we walk through what that architecture looks like, the threats it defends against, and how we run it ourselves as Cloudflare's customer zero.
CSS vs. JavaScript
There are a bunch of JavaScript animation libraries out there, and you might have wondered whether there’s a performance cost compared to traditional CSS transitions and keyframe animations. In this blog post, we’ll compare the same animation across several different strategies and see the differences firsthand. There’s some interesting nuance here!
Announcing Claude Managed Agents on Cloudflare
Cloudflare has integrated with Anthropic's Claude Managed Agents to provide a fast, isolated execution environment for autonomous code delivery. This means builders can scale agent workflows globally while strictly controlling access to private backends and easily customizing their agent’s tools and runtimes.
