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The best problem-solving writing in software engineering — databases, performance, security, frontend and distributed systems, in one feed.

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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
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
AI & ML — Helping protect journalists and local news from AI crawlers with Project Galileo

Helping protect journalists and local news from AI crawlers with Project Galileo

We are excited to announce that Project Galileo will now include access to Cloudflare's Bot Management and AI Crawl Control services. Participants in the program, which include roughly 750 journalists, independent news organizations, and other non-profits supporting news-gathering around the world, will now have the ability to protect their websites from AI crawlers - for free.

PDPatrick Day, JocelynPatrick Day, Jocelyn·September 23, 2025AI & ML