Announcing the Cloudflare Browser Developer Program
2025-08-18
Announcing the Browser Developer Program: Cloudflare’s new collaborative program to help shape Cloudflare challenges that work seamlessly with your browser. Join us today!...
MadeYouReset: An HTTP/2 vulnerability thwarted by Rapid Reset mitigations
2025-08-14
A new HTTP/2 denial-of-service (DoS) vulnerability called MadeYouReset was recently disclosed by security researchers. Cloudflare HTTP DDoS mitigation, already protects from MadeYouReset....
Aligning our prices and packaging with the problems we help customers solve
2025-08-11
You asked for simplicity. We listened. Introducing Externa and Interna, two new use-case-driven packages to simplify how you connect and protect your entire infrastructure....
Redesigning Workers KV for increased availability and faster performance
2025-08-08
Workers KV is Cloudflare's global key-value store. After the incident on June 12, we re-architected KV’s redundant storage backend, remove single points of failure, and make substantial improvements. ...
Partnering with OpenAI to bring their new open models onto Cloudflare Workers AI
2025-08-05
OpenAI’s newest open-source models are now available on Cloudflare Workers AI on Day 0, with support for Responses API, Code Interpreter and Web Search (coming soon)....
Reducing double spend latency from 40 ms to < 1 ms on privacy proxy
2025-08-05
We significantly sped up our privacy proxy service by fixing a 40ms delay in "double-spend" checks....
Perplexity is using stealth, undeclared crawlers to evade website no-crawl directives
2025-08-04
Perplexity is repeatedly modifying their user agent and changing IPs and ASNs to hide their crawling activity, in direct conflict with explicit no-crawl preferences expressed by websites....
Vulnerability disclosure on SSL for SaaS v1 (Managed CNAME)
2025-08-01
An upcoming vulnerability disclosure in Cloudflare’s SSL for SaaSv1 is detailed, explaining the steps we’ve taken towards deprecation....
The White House AI Action Plan: a new chapter in U.S. AI policy
2025-07-25
The White House AI Action Plan is a pivotal policy document outlining the current administration's priorities and deliverables in AI to establish American AI as the gold standard for AI worldwide....
Serverless Statusphere: a walk through building serverless ATProto applications on Cloudflare’s Developer Platform
2025-07-24
Build and deploy real-time, decentralized Authenticated Transfer Protocol (ATProto) apps on Cloudflare Workers....
Building Jetflow: a framework for flexible, performant data pipelines at Cloudflare
2025-07-23
Faced with a data-ingestion challenge at a massive scale, Cloudflare's Business Intelligence team built a new framework called Jetflow....
Cloudflare protects against critical SharePoint vulnerability, CVE-2025-53770
2025-07-22
Microsoft disclosed two critical vulnerabilities, CVE-2025-53771 and CVE-2025-53770, that are exploited to attack SharePoint servers....
Shutdown season: the Q2 2025 Internet disruption summary
2025-07-22
In Q2 2025, we observed Internet disruptions around the world resulting from government-directed shutdowns, power outages, cable damage, a cyberattack, and technical problems....
Quicksilver v2: evolution of a globally distributed key-value store (Part 2)
2025-07-17
This is part two of a story about how we overcame the challenges of making a complex system more scalable....
Explore your Cloudflare data with Python notebooks, powered by marimo
2025-07-16
We’ve partnered with marimo to bring their best-in-class Python notebook experience to your Cloudflare data....
Cloudflare 1.1.1.1 incident on July 14, 2025
2025-07-15
July 14th, 2025, Cloudflare made a change to our service topologies that caused an outage for 1.1.1.1 on the edge, causing downtime for 62 minutes for customers using the 1.1.1.1 public DNS Resolver....
Cloudflare recognized as a Visionary in 2025 Gartner® Magic Quadrant™ for SASE Platforms
2025-07-15
Gartner has recognized Cloudflare as a Visionary in the 2025 Gartner® Magic Quadrant™ for SASE Platforms report....
Hyper-volumetric DDoS attacks skyrocket: Cloudflare’s 2025 Q2 DDoS threat report
2025-07-15
June was the busiest month for DDoS attacks in 2025 Q2, accounting for nearly 38% of all observed activity....
Quicksilver v2: evolution of a globally distributed key-value store (Part 1)
2025-07-10
This blog post is the first of a series, in which we share our journey in redesigning Quicksilver — Cloudflare’s distributed key-value store that serves over 3 billion keys per second globally. ...
How TimescaleDB helped us scale analytics and reporting
2025-07-08
Cloudflare chose TimescaleDB to power its Digital Experience Monitoring and Zero Trust Analytics products. ...
