The Cloudflare Blog

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

2024 ended with a bang. Cloudflare mitigated another record-breaking DDoS attack peaking at 5.6 Tbps.

On January 19, 2025, ByteDance suspended TikTok and related apps for US users. We examine the 14-hour traffic plunge, recovery near Donald Trump’s inauguration.

On January 19, 2025, ByteDance shut down access to TikTok and other owned/operated apps for US users, causing an 85% traffic plunge and a rapid shift to alternatives like RedNote.

Cloudflare strengthens its commitment to cybersecurity by joining CISA's "Secure by Design" pledge. In line with this, we're reducing the prevalence of vulnerability classes across our products.

At Cloudflare, we treat developer content like an open source product. This collaborative approach enables global contributions to enhance quality and relevance for a wide range of users. This year,

Multi-Path TCP (MPTCP) leverages multiple network interfaces, like Wi-Fi and cellular, to provide seamless mobility for more reliable connectivity. While promising, MPTCP is still in its early stages,

Let’s talk about Stream Live’s design, and how it leverages the distributed nature of Cloudflare’s network, rather than centralized locations as many other live services do.

Follow along as I build a custom weather display using Cloudflare Workers and a popular e-paper display.

h3i is a command line tool and Rust library designed for low-level testing and debugging of HTTP/3, which runs over QUIC.

This roundup blog post shares the latest new features and capabilities at Cloudflare.

If you want to know what cache revalidation is, how it works, and why it can involve rolling a die, read on. This blog post presents a lock-free probabilistic approach to cache revalidation, along

How I used Workers AI to translate Cloudflare Stream’s auto-generated captions and what I learned along the way.

From Christmas Eve dinners in Europe to New Year’s Eve countdowns in Asia, Cloudflare data reveals how global festivities have typically shaped Internet usage and cultural rhythms

Cloudflare observed a 4x increase in bot-related traffic on Black Friday in 2024. 29% of all traffic on our network on Black Friday was Grinch Bots wreaking holiday havoc.

In 2024, as elections took place across over 60 countries, the Internet became both a battleground for cyberattacks and a vital platform for democratic engagement.

Want Claude to interact with your app directly? Build an MCP server on Cloudflare Workers, enabling you to connect your service directly, allowing Claude to understand and run tasks on your behalf.

Bring ChatGPT to your next video meeting with Cloudflare Calls. 

As threats evolve, SOC teams must adapt their operations. With Cloudflare’s holistic approach to managing user-based risk, SOC teams can operate more efficiently and reduce the likelihood of a breach.

Internationalization and localization require more than translation: tone, images, date/time and number formatting, among other items, need to be considered.