Multi-Path TCP: Revolutionizing Connectivity, One Path at a Time

The Internet is designed to provide multiple paths between two endpoints. Attempts to exploit multi-path opportunities are almost as old as the Internet, culminating in RFCs documenting some of t...

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Behind the Scenes With Stream Live, Cloudflare’s Live Streaming Service

Cloudflare announced Stream Live for open beta in 2021, and in 2022 we went GA. While we talked about the experience of using it and the value it delivers to customers, we didn’t talk about how w...

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The Forecast Is Clear: Clouds on E-Paper, Powered by the Cloud

I’ve noticed that many shops are increasingly using e-paper displays. They’re impressive: high contrast, no backlight, and no visible cables. Unlike most electronics, these displays are seamlessl...

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Open Sourcing H3i: A Command Line Tool and Library for Low-Level HTTP/3 Testing and Debugging

Have you ever built a piece of IKEA furniture, or put together a LEGO set, by following the instructions closely and only at the end realized at some point you didn't quite follow them correctly?...

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What’s New in Cloudflare: MASQUE Now Powers 1.1.1.1 & WARP Apps, DEX Now Generally Available With Remote Captures

At Cloudflare, we are constantly innovating and launching new features and capabilities across our product portfolio. Today’s roundup blog post shares two exciting updates across our platform: ou...

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Sometimes I Cache: Implementing Lock-Free Probabilistic Caching

HTTP caching is conceptually simple: if the response to a request is in the cache, serve it, and if not, pull it from your origin, put it in the cache, and return it. When the response is old, yo...

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Un Experimento Rápido: Translating Cloudflare Stream Captions With Workers AI

Cloudflare Stream launched AI-powered automated captions to transcribe English in on-demand videos in March 2024. Customers' immediate next questions were about other languages — both transcrib...

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When the World Logs Off: Christmas, New Year’s, and the Internet’s Holiday Rhythm

As January approaches and the year comes to a close, distinct changes in global Internet usage emerge. Year-end traditions — ranging from Christmas feasts to New Year’s Eve (NYE) countdowns — sha...

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Grinch Bots Strike Again: Defending Your Holidays From Cyber Threats

Grinch Bots are still stealing Christmas Back in 2021, we covered the antics of Grinch Bots and how the combination of proposed regulation and technology could prevent these malicious program...

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Global Elections in 2024: Internet Traffic and Cyber Threat Trends

Elections define the course of democracies (even as there are several types of democracies), and 2024 was a landmark year, with over 60 countries — plus the European Union — holding national elec...

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Hi Claude, Build an MCP Server on Cloudflare Workers

In late November 2024, Anthropic announced a new way to interact with AI, called Model Context Protocol (MCP). Today, we’re excited to show you how to use MCP in combination with Cloudflare to ex...

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Bring Multimodal Real-Time Interaction to Your AI Applications With Cloudflare Calls

OpenAI announced support for WebRTC in their Realtime API on December 17, 2024. Combining their Realtime API with Cloudflare Calls allows you to build experiences that weren’t possible just a few...

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The Role of Email Security in Reducing User Risk Amid Rising Threats

Phishing remains one of the most dangerous and persistent cyber threats for individuals and organizations. Modern attacks use a growing arsenal of deceptive techniques that bypass traditional sec...

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Internationalization and Localization: Bringing Cloudflare Radar to a Global Audience

Cloudflare Radar celebrated its fourth birthday in September 2024. As we’ve expanded Radar’s scope over the last four years, the value that it provides as a resource for the global Internet has g...

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Robotcop: Enforcing Your robots.txt Policies and Stopping Bots Before They Reach Your Website

Cloudflare’s AI Audit dashboard allows you to easily understand how AI companies and services access your content. AI Audit gives a summary of request counts broken out by bot, detailed path summ...

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