2025-12-08
Recent advancements in Cloudflare Python Workers means fast cold starts, comprehensive package support, and a great developer experience. We explain how they were achieved and show how Python can be used to build serverless applications on Cloudflare....
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2025-12-05
Cloudflare experienced a significant traffic outage on December 5, 2025, starting approximately at 8:47 UTC. The incident lasted approximately 25 minutes before resolution. We are sorry for the impact that it caused to our customers and the Internet. The incident was not caused by an attack and was due to configuration changes being applied to attempt to mitigate a recent industry-wide vulnerability impacting React Server Components....
2025-12-03
Cloudflare offers protection against a new high profile vulnerability for React Server Components: CVE-2025-55182. All WAF customers are automatically protected as long as the WAF is deployed....
2025-12-03
Welcome to the 23rd edition of Cloudflare’s Quarterly DDoS Threat Report. This report offers a comprehensive analysis of the evolving threat landscape of Distributed Denial of Service (DDoS) attacks based on data from the Cloudflare network. In this edition, we focus on the third quarter of 2025....
2025-12-01
Today, we’re excited to announce that Replicate is officially part of Cloudflare. We wanted to share a bit about our journey and why we made this decision. ...
2025-11-25
FLUX.2 [dev] by Black Forest Labs is now on Workers AI! This advanced open-weight image model offers superior photorealism, multi-reference inputs, and granular control with JSON prompting....
2025-11-24
The WAF provides ways for our customers to gain insight into why it takes certain actions. The more granular and precise the insight, the more reproducible and understandable it is. Revamped payload logging is one such method. ...
2025-11-18
Cloudflare suffered a service outage on November 18, 2025. The outage was triggered by a bug in generation logic for a Bot Management feature file causing many Cloudflare services to be affected. ...
2025-11-17
Bringing Replicate’s tools into Cloudflare will continue to make our Workers Platform the best place on the Internet to build and deploy any AI or agentic workflow. ...
2025-11-13
We explore the fundamentals of Saltstack and how we use it at Cloudflare. We also explain how we built the infrastructure to reduce release delays due to Salt failures on the edge by over 5%. ...
2025-11-12
Remote bindings allow you to connect your local Worker code to deployed Cloudflare resources like R2 and D1. Come along on the technical journey of how we built this feature to create a seamless local development experience....
2025-11-10
Cloudflare Workflows, our durable execution engine for running multi-step applications, now supports Python. That means less friction, more possibilities, and another reason to build on Cloudflare....
2025-11-07
Announcing a new self-serve API for Bring Your Own IP (BYOIP), giving customers unprecedented control and flexibility to onboard, manage, and use their own IP prefixes with Cloudflare's services....
2025-11-06
We’re excited to announce the open sourcing of tokio-quiche, our async QUIC library built on quiche and tokio. Relied upon in our services such as iCloud Private Relay and our next-generation Oxy-based proxies, tokio-quiche handles millions of HTTP/3 requests per second with low latency and high throughput. ...
2025-11-06
Cloudflare Stream provides a unified platform for video storage, encoding, and delivery. We are now enabling developers to seamlessly extract audio from videos....
2025-11-05
Workers VPC Services enter open beta today. We look under the hood to see how Workers VPC connects your globally-deployed Workers to your regional private networks by using Cloudflare's global network, while abstracting cross-cloud networking complexity....
2025-11-04
End-to-end testing for Cloudflare Workflows was challenging. We're introducing first-class support for Workflows in cloudflare:test, enabling full introspection, mocking, and isolated, reliable tests for your most complex applications....
2025-11-03
Cloudflare used historical data to investigate reports of potential new firewall tests in Turkmenistan. Shifts in TCP resets/timeouts across ASNs corroborate large-scale network control system changes. ...
2025-10-31
A BGP “zombie” is essentially a route that has become stuck in the Default-Free Zone (DFZ) of the Internet, potentially due to a missed or lost prefix withdrawal. We’ll walk through some situations where BGP zombies are more likely to rise from the dead and wreak havoc. ...
2025-10-31
HTTP/2 implementations often respond to suspected attacks by closing the connection with an ENHANCE_YOUR_CALM error code. Learn how a common pattern of using Go's HTTP/2 client can lead to unintended errors and the solution to avoiding them....
