Announcing Cloudflare Ambassadors, Community Engineers, and another $1M in open-source funding
We are launching updated community programs, including Cloudflare Ambassadors and Community Engineers, backed by $1M in open-source funding. Learn how we are supporting maintainers and scaling our developer community.
How and Why Netflix Built a Real-Time Distributed Graph: Part 3 — Querying the graph with gRPC…
Introducing: Cloudflare Agents
Cloudflare Agents brings all of your deployed agent sessions into a single experience, surfacing key information and insights into how your agents perform at scale.
Dogfooding at scale: migrating cdnjs to Cloudflare’s Developer Platform
We moved cdnjs, serving 9 billion requests a day, entirely onto Cloudflare's Developer Platform. That means we’re running one of the Internet's busiest open-source CDNs on our own building blocks, and we pushed Workflows and Workers limits higher for everyone.
Introducing Meerkat- an experiment in global consensus
Cloudflare Research is building a global consensus service called Meerkat that uses a new consensus algorithm called QuePaxa. We plan to use Meerkat to build a strongly consistent, fault-tolerant key-value store, and other applications.
Billions of requests: Black Friday-Cyber Monday 2025
Every year, Black Friday and Cyber Monday reveal how people shop, browse, and discover products at global scale. For Vercel, the weekend is not a different operating mode. The platform behaves the same way it does every day, only at heightened scale.
Life of a Vercel request: Application-aware routing
Vercel's gateway leverages framework-defined infrastructure to intelligently load balance, protect, and route applications at-scale and with any architecture complexity.
Mitigating Denial of Wallet risks with Vercel
Protect against Denial of Wallet (DoW) attacks with Vercel. DoW exploits cloud scalability to inflate costs. Vercel provides solutions like budget alerts, spend limits, and anomaly detection to safeguard workloads and maintain financial stability.
How GitHub maintains compliance for open source dependencies
Explore how the Open Source Program Office uses GitHub’s new license compliance product to manage open source dependencies at scale.
Introducing eve
Introducing eve, the open-source agent framework from Vercel for building, running, and scaling agents in production, with durable execution, sandboxed compute, approvals, channels, tracing, and evals built in.
Rearchitecting the Workflows control plane for the agentic era
Cloudflare Workflows, a durable execution engine for multi-step applications, now supports higher concurrency and creation rate limits through a rearchitectured control plane, helping scale to meet the use cases for durable background agents.
Testing Font Scaling For Accessibility With Figma Variables — Smashing Magazine
Accessibility works best when it blends into everyday design workflows. The goal isn’t a big transformation, but simple work processes that fit naturally into a team’s routine. With Figma variables, testing font size increases becomes part of the design flow itself, making accessibility feel almost inevitable rather than optional.
How Slack Rebuilt Notifications 📣
Introduction 🔔 At Slack, notifications are how teams stay in the loop, but they can also become overwhelming when not designed with intention. Our goal was to make staying informed feel effortless. We set out to rebuild one of Slack’s most complicated systems from the ground up by bringing calm, consistency, and clarity to the…
How Notion Workers run untrusted code at scale with Vercel Sandbox
FFmpeg at Meta: Media Processing at Scale
FFmpeg is truly a multi-tool for media processing. As an industry-standard tool it supports a wide variety of audio and video codecs and container formats. It can also orchestrate complex chains of filters for media editing and manipulation. For the people who use our apps, FFmpeg plays an important role in enabling new video experiences […]
The generative recommender behind Shopify's commerce engine (2026) - Shopify
From raw event sequences to real-time predictions: what it took to build and ship a generative recommender at commerce scale.
Metronome + Stripe: Building the future of billing
Together, Metronome and Stripe are building the most flexible and complete billing solution on the market—one that works for everyone, from engineers in a garage figuring out their business model to public companies monetizing at global scale.
Scaling, stretching and shifting sinusoids - Eli Bendersky's website
Background Coding Agents: Predictable Results Through Strong Feedback Loops (Honk, Part 3)
This is part 3 in our series about Spotify's journey with background coding agents (internal codename: “Honk”) and the future of large-scale software maintenance. See also , , and .
How we prepare Shopify for BFCM (2025) - Shopify
Nine months of chaos engineering and scale tests so intense we ran them (mostly) at night. Inside our 2025 readiness program for Black Friday weekend.
How Nous Research used BotID to block automated abuse at scale
Background Coding Agents: Context Engineering (Honk, Part 2)
This is part 2 in our series about Spotify's journey with background coding agents (internal codename: “Honk”) and the future of large-scale software maintenance. See also , , and .
1,500+ PRs Later: Spotify’s Journey with Our Background Coding Agent (Honk, Part 1)
This is part 1 in our series about Spotify's journey with background coding agents (internal codename: “Honk”) and the future of large-scale software maintenance. See also , , and .
Just another (Black) Friday
Vercel customers can treat Black Friday like just another day, ready to scale to billions of requests.
15 years of helping build a better Internet: A look back at Birthday Week 2025
Cloudflare just turned 15! Birthday Week 2025 celebrated innovation at scale: Rust-powered core systems, post-quantum upgrades, developer access for students, PlanetScale integration, open-source partnerships, and our biggest internship program ever — 1,111 interns in 2026.
Building Jetflow: a framework for flexible, performant data pipelines at Cloudflare
Faced with a data-ingestion challenge at a massive scale, Cloudflare's Business Intelligence team built a new framework called Jetflow. This post details the journey of its creation, from the architectural design to the specific code-level optimizations that resulted in a more than 100x efficiency improvement.
Quicksilver v2: evolution of a globally distributed key-value store (Part 2)
This is part two of a story about how we overcame the challenges of making a complex system more scalable. It is about how we made Quicksilver, our highly distributed key-value store, scalable with regard to its data size by evolving to a tiered caching architecture.
Quicksilver v2: evolution of a globally distributed key-value store (Part 1)
This blog post is the first of a series, in which we share our journey in redesigning Quicksilver — Cloudflare’s distributed key-value store that serves over 3 billion keys per second globally. Here we discuss how we migrated from full datasets on each machine to a more scalable distributed design.
Introducing the commerce payments protocol (2025) - Shopify
Learn how we partnered with Coinbase to bring payments onchain at scale with a new smart contract protocol to meet the complex requirements of commerce.
How GitHub engineers tackle platform problems
Our best practices for quickly identifying, resolving, and preventing issues at scale.
Our pledge to help improve the accessibility of open source software at scale
GitHub takes the Global Accessibility Awareness Day (GAAD) pledge.
Figma Buzz is where design and marketing teams co-create
With Figma Buzz, brand designers and marketers have a shared space to build beautiful, on-brand assets at scale.
Selecting a model for semantic search at Dropbox scale
Nautilus is our search engine for finding documents and other files in Dropbox. Here's how it created the foundation for us to build better search functionality to understand more nuanced queries.
Cloudflare Workflows is now GA: production-ready durable execution
Workflows — a durable execution engine built directly on top of Workers — is now Generally Available. We’ve landed new human-in-the-loop capabilities, more scale, and more metrics: just what you need for a production-ready service.
A Behind-the-Scenes Look at How We Release the Spotify App (Part 1)
Developing and releasing mobile apps at scale is a big challenge. With each weekly release of our mobile app for iOS and Android, hundreds of changes go out to more than 675 million users all over the world and on all kinds of mobile devices. A lot can go wrong, so discovering and mitigating potential and confirmed issues is critical to ensuring a smooth listening experience. Every feature could i
Over 700 million events/second: How we make sense of too much data
Here we explain how we made our data pipeline scale to 700 million events per second while becoming more resilient than ever before. We share some math behind our approach and some of the designs of our systems, as well as issues that we had to face and bugs we had to chase.
Refactoring with Codemods to Automate API Changes
Refactoring is something developers do all the time—making code easier to understand, maintain, and extend. While IDEs can handle simple refactorings with just a few keystrokes, things get tricky when you need to apply changes across large or distributed codebases, especially those you don’t fully control. That’s where codemods come in. By using Abstract Syntax Trees (AST), codemods allow you to a
Aggregating my distributed self
Miriam Suzanne's in the middle of a redesign of her personal website. It began in August 2022. She's made an entire series out of the work that's worth your
Governing data products using fitness functions
Decentralized data management requires automation to scale governance effectively. Fitness functions are a powerful automated governance technique we've applied to data products within the context of a Data Mesh. Since data products serve as the foundational building blocks (architectural quanta) of a data mesh, ensuring robust governance around them significantly increases the chances of a succes
How we improved availability through iterative simplification
Solving and staying ahead of problems when scaling up a system of GitHub’s size is a delicate process. Here’s a look at some of the tools in GitHub’s toolbox, and how we’ve used them to solve problems.
Three ways our usage-based billing product is unique
Our usage-based product integrates naturally alongside your other billing pathways, while scaling with you as your usage-based pricing ambitions grow.
Scaling Success: Key Insights And Practical Takeaways — Smashing Magazine
The web is still a young platform, and we’re only now beginning to recognize what “success” looks like for large projects. In his recent Smashing book, [Success at Scale](https://www.smashingmagazine.com/printed-books/success-at-scale/), Addy Osmani presents practical case studies featuring the web’s most renowned companies and their efforts to make big changes to existing apps and sites. In this
Mintlify: Scaling a powerful documentation platform with Vercel
Keeping it 100(x) with real-time data at scale
After years of playing catch-up with Figma’s growth, it was time to fundamentally rethink LiveGraph’s architecture.
Scaling accessibility within GitHub and beyond
GitHub celebrates Global Accessibility Awareness Day by launching another installment of the Coding Accessibility series and sharing how we scale accessibility within GitHub and beyond.
Kafka 101
This is a guest article by Stanislav Kozlovski, an Apache Kafka Committer. If you would like to connect with Stanislav, you can do so on Twitter and LinkedIn. Originally developed in LinkedIn during 2011, Apache Kafka is one of the most popular open-source Apache projects out there. So far it has had a total of 24 notable releases and most intriguingly, its code base has grown at an average rate o
Speeding up C++ build times
How we cut build times by 50% and shipped a solution for scale.
Autonomous hardware diagnostics and recovery at scale
Operating hardware in 310 cities in 120 countries means that hardware can break anywhere and anytime. Detecting and managing server failure at scale requires automation. Here's how we automated
Now Shipping: Success At Scale, A New Smashing Book by Addy Osmani — Smashing Magazine
It’s here, and it’s shipping! Meet our newest Smashing book, ”Success at Scale”. It’s filled with practical insights and real-world case studies of how big changes can be made on projects of any size. Addy Osmani has curated finest examples, case studies and interviews to help you get successful at scale. Jump to the details and get the book right away.
Success At Scale: Last Chance For Pre-Sale Price — Smashing Magazine
Our next book, “Success at Scale” is finally at the printer, which means we’ll be shipping books soon. It’s also your last chance to get the book at the presale price. Get your copy and save now!
How GitHub uses merge queue to ship hundreds of changes every day
Here’s how merge queue transformed the way GitHub deploys changes to production at scale, so you can do the same for your organization.
Behind AWS S3’s Massive Scale
This is a guest article by Stanislav Kozlovski, an Apache Kafka Committer. If you would like to connect with Stanislav, you can do so on Twitter and LinkedIn. AWS S3 is a service every engineer is familiar with. It’s the service that popularized the notion of cold-storage to the world of cloud. In essence - a scalable multi-tenant storage service which provides interfaces to store and retrieve obj
Empowering all developers to build without barriers
GitHub has been awarded the 2024 Axe Accessibility at Scale Award from Deque Systems. Read more about how we’ve implemented accessibility at scale.
A Packwerk Retrospective - Shopify
This article was originally posted on the Rails at Scale blog. In September, 2020, our team at Shopify released a Ruby gem named Packwerk, a tool to enforce boundaries and modularize Rails applications. Since its release, Packwerk has taken on a life of its own, inspiring blog posts, conference talks, and even an entire gem ecosystem. Its popularity is an indication that Packwerk clearly filled a
Diseconomies of scale in fraud, spam, support, and moderation
Introducing Foundations - our open source Rust service foundation library
Foundations is a foundational Rust library, designed to help scale programs for distributed, production-grade systems
How GitHub’s Developer Experience team improved innerloop development
Our latest solution to the ubiquitous engineering problem of integration testing in a distributed service ecosystem here at GitHub.
Horizontally scaling the Rails backend of Shop app with Vitess - Shopify
Shop app horizontally scaled a Ruby on Rails app with Vitess. This blog describes Vitess and our detailed approach for introducing Vitess to a Rails app.