
The Internet is changing more today than at any point since Cloudflare launched back on September 27, 2010. As automated traffic surpasses human activity, we reflect on the rise of AI agents, new creators, and how we can help build a fair, sustainable future for the web.
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Matthew Prince·September 27, 2026AI & ML 

Like many programmers, I find Alexis King's Parse, don't validate article fascinating, because it gives a name to an idiom that seems familiar and important - one I've observed and used in the past without naming it explicitly. This post is a review of the "Parse, don't validate" pattern applied to …

Misconfiguring Turnstile by skipping backend validation leaves sites exposed to bots. Turnstile Spin fixes incomplete setups by using your preferred AI coding agent to wire up server-side verification.
JLJules Lemee·September 25, 2026Security 
Yesterday, I received this email as a response to You Can't Vibe Code Love . It's such a remarkable and powerful statement that I asked permission to share it here, in its entirety, with personal information redacted: Hey Jeff, Hope you and your family are doing well.

A look at how a design system shipped major changes without breaking the world.

Describe the interface you need in plain English, then let the agent build a live surface you can both use and update—so you spend less time adapting to tools and more time getting work done.
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Kayla Cinnamon·September 25, 2026AI & ML 


External security researchers at Accomplish identified a vulnerability in Cloudflare Containers that could expose residual disk data from previous workloads. We explain how the issue worked, how we investigated it, and the steps we took to remediate it.
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Rushil Mehra·September 24, 2026Security 
What is a developer to do when they need something more tangible than a chat box? Enter canvases.
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Burke Holland·September 24, 2026AI & ML 
In this blog post, I explain how to use the new fuzzing taskflow based on the GitHub Security Lab Taskflow Agent AI framework.
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Antonio Morales·September 24, 2026AI & ML 
Agents are great at producing code. The valuable work left for you is deciding what should exist, how it should behave, and what you're willing to trade for it.
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Kent C. Dodds·September 24, 2026AI & ML 
We believe glasses are the best form factor for having AI help throughout your day. They can understand your personal context better than other kinds of devices and keep you present without picking up a mobile phone. Most of the time, glasses are helping you see well, protecting your eyes and complementing your look, and [...] Read More... The post Bringing Private Processing to Meta AI Glasses ap
MEMeta Engineering·September 24, 2026Security 


Learnings from deploying AI at company scale, and what organizations need to consider as they move from AI adoption to broader transformation.
DTDropbox Team·September 23, 2026AI & ML 
New research from GitHub and Yale Program on Climate Change Communication finds strong demand for tools, measurement, and practical guidance that can help developers reduce wasted compute.

How we rebuilt the diff surface in the GitHub Copilot app to open a million-line pull request with hundreds of inline review comments.
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Alberto Gimeno·September 23, 2026AI & ML 
Vary support is now available in Cache Rules on every plan. You can normalize known negotiation headers, pass exact values through to the origin when those small differences matter, or bypass cache when the variation is too unpredictable.

Worker Previews gives every branch its own URL, configuration, state, and observability, so you and your agents can test changes in parallel without affecting production.

Python Workers allow developers to run Python web frameworks and AI orchestration libraries natively in the Cloudflare Workers runtime. You can seamlessly integrate with Cloudflare's ecosystem including D1, R2, and Workers AI without writing any JavaScript glue code.
GCGyeongjae Choi·September 21, 2026AI & ML 
Learn about the newly launched version of the Dropbox API documentation and its modern design and features.
DDDropbox Developer Support Team·September 21, 2026Design & UX 
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

Petal, the next step in Meta’s subsea innovation, will be the first subsea cable to deliver petabit capacity at transoceanic distances, connecting France and the United States over approximately 7,000 km (4,300 mi). Expected to enter service in 2029, it will be the first subsea cable system to deploy multi-core fiber technology at scale, doubling [...] Read More... The post Inside Petal: Building

The following are my notes on discrete-time Fourier series (DTFS), as well as the discrete-time Fourier transform (DTFT). These topics serve as an important theoretical underpinning to the digital processing of signals by computers using the DFT (which will be covered in a future post). For discrete-time signals, we use …

Cloudflare's global network is immense but not limitless. As we look for small ways to trim our resource usage, we sometimes get lucky and we can cut significantly more. Here’s how we reduced one of our Pingora-based service's RAM usage with statistics.

We dive into these questions and other AI hot takes on the latest episode of the GitHub Podcast.


You can just prove things, apparently.

ACAmelia Charles·September 18, 2026AI & ML 

A rewrite this size wasn't affordable before agents. Here's what porting the Copilot agent runtime to 800,000 lines of production Rust actually took.
STStephen Toub·September 17, 2026AI & ML 

A modern storefront can look healthy while malicious JavaScript quietly siphons revenue, hijacks clicks, or rewrites analytics. See how Cloudflare's machine learning models surface evasive client-side attacks for analyst investigation.
JMJuan Miguel Cejuela·September 16, 2026AI & ML 
Despite broad browser support, container queries remain surprisingly underused and frequently misunderstood. Let’s look at how they differ from media queries, when to reach for each, and how container queries help reusable components respond naturally to the contexts in which they appear. - CSS - Tools - Techniques
SMSmashing Magazine·September 16, 2026Frontend 
Quality and reliability have always been a point of pride for Spotify. We run an extraordinarily complex...
SESpotify Engineering·September 16, 2026AI & ML 
Cloudflare is giving site owners a way to stay discoverable while disallowing AI training. New controls and an Accountable designation establish a shared model with Apple, Google, and Microsoft.
BBBryan Becker·September 15, 2026AI & ML 
You can now scope access to individual Workers and assign narrower Developer Platform roles, so teammates, CI tokens, and agents get only the access they need to debug, deploy, or monitor safely.

This blog highlights the details of CYPEX 2.0, with each feature being explained in detail. Read to know more.


Cloudflare CASB policies introduce a native automation engine built directly on the Cloudflare developer platform to remediate SaaS risks automatically. Security teams can now design event-driven logic to revoke risky file shares and send webhooks without manual intervention.
MLMichael Leslie·September 11, 2026Security 
If you can write down how you do your work, you can automate it. Here's what I did to support GitHub's APAC marketing team.
TTTomoko Tanaka·September 11, 2026AI & ML 
Strong UX ideas do not secure investment on their own. Through a worked example, Alex Williams breaks down how to define business value, calculate costs, test causality, and build a credible case for the return on a design initiative. - UX - Design - Business


EDEric Dodds·September 11, 2026AI & ML 
1.1.1.1 now validates DNSSEC signatures using NIST’s post-quantum ML-DSA-44 algorithm. Here is how we manage 2,420-byte signatures and downgrade risks at scale.
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Sebastiaan Neuteboom·September 10, 2026AI & ML 
In August, we experienced five incidents that resulted in degraded performance across GitHub services.

Checking agent-generated code usually means hopping between tabs. Learn how to view diffs, run terminal commands, and preview web apps side by side in the GitHub Copilot app.
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Kayla Cinnamon·September 10, 2026AI & ML 

Workers now enables Node.js compatibility by default, supports applications up to 64 mebibytes, and adds a URL-based module registry with import.meta, lazy compilation, shared code caches, and clearer errors.

TThe web is evolving beyond menus, forms, and endless clicks toward experiences shaped around human intent. For UX designers, understanding this shift means re-evaluating their role, moving from designing visible interfaces to guiding transparent, intent-driven AI experiences.
SMSmashing Magazine·September 9, 2026AI & ML 
Automatic Key Exchange probes TLS 1.3-capable customer origins to learn which key agreement algorithms they support. We then lead with the most secure algorithm when connecting to the origin, preferring post-quantum connections wherever the origin supports it.
SASuleman Ahmad·September 8, 2026Security 
This blog is a deep walkthrough about network policies in Kubernetes, read to know more.

Kody turns the good answer into a package you keep.

Clearing the confusion about what Bayesian A/B testing is.


We previously noted that, while it's easier than ever to hit a particular quality bar by having coding agents use effective test techniques, software quality seems to be getting worse , indicating that whatever defaults developers are using may not work very well. Here, we test if simple instructions to agents to use particular techniques or libraries improve implementation correctness, as a kind

In controlled offline evaluations, HydraFusion’s selective coding workflows matched or exceeded the evaluated Opus 5 baseline while reducing estimated workflow cost. Now available as a research preview in GitHub Copilot.

Use production traffic and security signals to prioritize findings, prepare edge mitigations when safe, and propose code patches. By combining WAF data with OpenAI Daybreak models, Vulnerability Discovery and Remediation helps teams identify and patch the most critical threats first.
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Ken Sanderson, Jacob Crisp·September 3, 2026Security