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Year 2025

1,335 articles published in 2025.

Frontend — Accelerating our Android apps with Baseline Profiles

Accelerating our Android apps with Baseline Profiles

Key Takeways: With billions of Android app users, we’re always looking to improve the Meta app experience, and in this post, we explore the ways we’ve leveraged Android’s Baseline Profiles to significantly improve their performance. We discuss the performance challenges we’ve faced as Meta’s apps, how the needs of users have become more complex over […]

PHPhil Hornshaw·October 1, 2025Frontend
AI & ML — LLMs Are the Key to Mutation Testing and Better Compliance

LLMs Are the Key to Mutation Testing and Better Compliance

Following our keynote presentations at FSE 2025 and Eurostar 2025, we’re delving further into the development of Meta’s Automated Compliance Hardening (ACH) tool, an LLM-based tool for software testing that is automating aspects of compliance adherence at Meta, while accelerating developer and product velocity. By leveraging LLMs we’ve been able to overcome the barriers that […]

CWChris Wiltz·September 30, 2025AI & ML
Engineering — Shades Of October (2025 Wallpapers Edition) — Smashing Magazine

Shades Of October (2025 Wallpapers Edition) — Smashing Magazine

How about some new wallpapers to get your desktop ready for fall and the upcoming Halloween season? We’ve got you covered! Following our monthly tradition, the wallpapers in this post were created with love by the community for the community and can be downloaded for free. Enjoy!

CMCosima MielkeCosima Mielke·September 30, 2025Engineering
Frontend — Quick Hit #60

Quick Hit #60

Alignment might be one of the more confusing (or misunderstood) parts of CSS. I love having a thorough explanation from someone like Temani Afif who has it

GGGeoff GrahamGeoff Graham·September 29, 2025Frontend
AI & ML — Meta 3D AssetGen: Generating 3D Worlds With AI

Meta 3D AssetGen: Generating 3D Worlds With AI

Imagine being able to use AI to create 3D virtual worlds using prompts as easily as you can generate images. The intersection of AI and VR was one of the biggest topics at Meta Connect this year. In his keynote, Mark Zuckerberg shared his vision of a future where anyone can create virtual worlds using […]

CWChris Wiltz·September 29, 2025AI & ML
AI & ML — Meta’s Infrastructure Evolution and the Advent of AI

Meta’s Infrastructure Evolution and the Advent of AI

Over the past 21 years, Meta has grown exponentially from a small social network connecting a few thousand people in a handful of universities in the U.S. into several apps and novel hardware products that serve over 3.4 billion people throughout the world. Our infrastructure has evolved significantly over the years, growing from a […]

CWChris Wiltz·September 29, 2025AI & ML
AI & ML — Developing an open standard for agentic commerce

Developing an open standard for agentic commerce

Today, we announced that Stripe is powering OpenAI’s new commerce experience, Instant Checkout in ChatGPT, and we released the Agentic Commerce Protocol, a new open standard that enables programmatic commerce flows between AI agents and businesses.

JWJeff WeinsteinJeff Weinstein·September 29, 2025AI & ML
Performance — Cloudflare just got faster and more secure, powered by Rust

Cloudflare just got faster and more secure, powered by Rust

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.

RSRichard, Steve GoldsmithRichard, Steve Goldsmith·September 26, 2025Performance
AI & ML — An AI Index for all our customers

An AI Index for all our customers

Cloudflare will soon automatically create an AI-optimized search index for your domain, and expose a set of ready-to-use standard APIs and tools including an MCP server, LLMs.txt, and a search API. For AI builders, Cloudflare will offer a new way to discover and retrieve web content.

CACelso, AnniCelso, Anni·September 26, 2025AI & ML
Networking — Monitoring AS-SETs and why they matter

Monitoring AS-SETs and why they matter

AS-SETs, for better or worse, are critical data sources that help build BGP route filters across the Internet. Because these AS-SET objects are based solely on trust, they can be misused. We will cover some of the reasons why operators need to monitor the AS-SET memberships for their ASN, and now Cloudflare Radar can help.

MBMingwei, BrytonMingwei, Bryton·September 26, 2025Networking
Performance — Network performance update- Birthday Week 2025

Network performance update- Birthday Week 2025

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.

LYLai Yi OhlsenLai Yi Ohlsen·September 26, 2025Performance
AI & ML — Code Mode: the better way to use MCP

Code Mode: the better way to use MCP

It turns out we've all been using MCP wrong. Most agents today use MCP by exposing the "tools" directly to the LLM. We tried something different: Convert the MCP tools into a TypeScript API, and then ask an LLM to write code that calls that API. The results are striking.

KVKenton Varda, SunilKenton Varda, Sunil·September 26, 2025AI & ML
AI & ML — Networking at the Heart of AI — @Scale: Networking 2025 Recap

Networking at the Heart of AI — @Scale: Networking 2025 Recap

AI is everywhere and, as network engineers, we are right in the thick of it: building the network infrastructure for AI. This year, at our largest @Scale:Networking ever, engineers from Meta, ByteDance, Google, Microsoft, Oracle, AMD, Broadcom, Cisco, and NVIDIA came together to share our latest experiences in architecting, designing, operating, and debugging our AI […]

CWChris Wiltz·September 26, 2025AI & ML
AI & ML — From Prompt To Partner: Designing Your Custom AI Assistant — Smashing Magazine

From Prompt To Partner: Designing Your Custom AI Assistant — Smashing Magazine

What if your best AI prompts didn’t disappear into your unorganized chat history, but came back tomorrow as a reliable assistant? In this article, you’ll learn how to turn one-off “aha” prompts into reusable assistants that are tailored to your audience, grounded in your knowledge, and consistent every time, saving you (and your team) from typing the same 448-word prompt ever again.

LCLyndon CerejoLyndon Cerejo·September 26, 2025AI & ML
Engineering — A year of improving Node.js compatibility in Cloudflare Workers

A year of improving Node.js compatibility in Cloudflare Workers

Over the year we have greatly expanded Node.js compatibility. There are hundreds of new Node.js APIs now available that make it easier to run existing Node.js code on our platform. This has been a major initiative for us, and we are excited to share the progress we've made.

JJasnellJasnell·September 25, 2025Engineering
Performance — Cloudflare's developer platform keeps getting better, faster, and more powerful. Here's everything that's new.

Cloudflare's developer platform keeps getting better, faster, and more powerful. Here's everything that's new.

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

BIBrendan Irvine Broque, RitaBrendan Irvine Broque, Rita·September 25, 2025Performance
AI & ML — Choice: the path to AI sovereignty

Choice: the path to AI sovereignty

As governments around the world eye AI for national transformation, Cloudflare champions AI sovereignty through choice: diverse tools, data control, and no vendor lock-in. We're enabling this in India, Japan, and Southeast Asia, offering local, open-source models on Workers AI, fostering innovation.

CSCarly, Smrithi RameshCarly, Smrithi Ramesh·September 25, 2025AI & ML
Databases — R2 SQL: a deep dive into our new distributed query engine

R2 SQL: a deep dive into our new distributed query engine

R2 SQL provides a built-in, serverless way to run ad-hoc analytic queries against your R2 Data Catalog. This post dives deep under the Iceberg into how we built this distributed engine, from its metadata-driven planner to its parallel execution model.

YNYevgen, Nikita LapkovYevgen, Nikita Lapkov·September 25, 2025Databases
Security — Safe in the sandbox: security hardening for Cloudflare Workers

Safe in the sandbox: security hardening for Cloudflare Workers

Cloudflare Workers are constantly being updated to be as secure and efficient as possible. We are further hardening Workers by making use of the latest software and hardware features. We use defense-in-depth, including V8 sandboxes and the CPU's memory protection keys, to keep your data safe.

ECErik Corry, Ketan GuptaErik Corry, Ketan Gupta·September 25, 2025Security
Engineering — Announcing Cloudflare Email Service’s private beta

Announcing Cloudflare Email Service’s private beta

Today, we’re launching Cloudflare Email Service. Send and receive email directly from your Workers with native bindings—no API keys needed. We're unifying email sending and routing into a single service built for developers. Sign up for the private beta.

TGThomas Gauvin, CelsoThomas Gauvin, Celso·September 25, 2025Engineering
Frontend — Quick Hit #59

Quick Hit #59

A working draft for CSS Environment Variables is posted. Same concept as var(), but env() is a “global” variable at the document level for values the user

GGGeoff GrahamGeoff Graham·September 25, 2025Frontend
Security — Securing data in SaaS to SaaS applications

Securing data in SaaS to SaaS applications

The recent Salesloft breach taught us one thing: companies do not have visibility over data in SaaS applications. Cloudflare is committing to providing additional security tools to companies who use SaaS applications and downstream integrations.

MTMichael Tremante, Bill SobelMichael Tremante, Bill Sobel·September 24, 2025Security
Engineering — Video Streaming With the AV1 Video Codec in Mobile Devices

Video Streaming With the AV1 Video Codec in Mobile Devices

Today, Meta, Vodafone, and Google released a white paper, “Video Streaming with the AV1 Video Codec in Mobile Devices,” detailing the benefits of the AV1 codec, an advanced video compression technique, to enhance the streaming video experience on mobile devices. The white paper recommends that: Vendors of core processors (SoCs) should evaluate the adoption of […]

CWChris Wiltz·September 24, 2025Engineering
AI & ML — Intent Prototyping: The Allure And Danger Of Pure Vibe Coding In Enterprise UX (Part 1) — Smashing Magazine

Intent Prototyping: The Allure And Danger Of Pure Vibe Coding In Enterprise UX (Part 1) — Smashing Magazine

Yegor Gilyov examines the problem of over-reliance on static high-fidelity mockups, which often leave the conceptual model and user flows dangerously underdeveloped. He then explores whether AI-powered prototyping is the answer, questioning whether the path forward is the popular “vibe coding” approach or a more structured, intent-driven approach.

YGYegor GilyovYegor Gilyov·September 24, 2025AI & ML