Cloudflare

Announcing Claude Compliance API support with Cloudflare CASB

Security teams needed visibility and compliance monitoring of Claude Enterprise API usage across their organization without leaving their existing security infrastructure.

security api-design
3 min
Cloudflare

Announcing Claude Managed Agents on Cloudflare

Enabling developers to deploy and scale autonomous agent workflows globally while maintaining security isolation and control over access to private backend systems.

distributed-systems security
4 min
Cloudflare

Project Glasswing: what Mythos showed us

Determining whether security-focused LLMs can effectively identify vulnerabilities in live production infrastructure code at scale.

security ml-systems
4 min
Cloudflare

When "idle" isn't idle: how a Linux kernel optimization became a QUIC bug

CUBIC congestion control algorithm's congestion window was becoming pinned at minimum values in QUIC, causing severe performance degradation due to incorrect idle period detection.

networking security
4 min
Cloudflare

How Cloudflare responded to the “Copy Fail” Linux vulnerability

Rapidly detect, investigate, and mitigate a critical Linux kernel privilege escalation vulnerability across a global edge computing fleet without impacting customers.

security distributed-systems
4 min
Cloudflare

When DNSSEC goes wrong: how we responded to the .de TLD outage

When DENIC published invalid DNSSEC signatures for the .de TLD, DNS resolvers like 1.1.1.1 faced a critical decision: reject all .de domain queries due to signature validation failures or serve potentially stale cached responses to maintain availability.

caching distributed-systems
4 min
Cloudflare

Agents can now create Cloudflare accounts, buy domains, and deploy

How to enable autonomous agents to programmatically create Cloudflare accounts, purchase domains, and deploy infrastructure without manual dashboard interaction or credential handling.

api-design security
4 min
Cloudflare

Code Orange: Fail Small is complete. The result is a stronger Cloudflare network

Cloudflare needed to make their global edge infrastructure more resilient to configuration changes and prevent widespread outages caused by unsafe deployments.

distributed-systems observability
4 min
Cloudflare

Post-quantum encryption for Cloudflare IPsec is generally available

Protecting IPsec communications from future quantum computing threats while maintaining current interoperability with existing infrastructure.

security distributed-systems
3 min
Cloudflare

Shutdowns, power outages, and conflict: a review of Q1 2026 Internet disruptions

How to measure, analyze, and publicly report on Internet disruptions caused by geopolitical events, infrastructure attacks, and power outages in real-time across global networks.

observability distributed-systems
4 min
Cloudflare

Building the agentic cloud: everything we launched during Agents Week 2026

How to enable developers to build and deploy AI agents at scale across a distributed edge computing network while maintaining security and providing necessary infrastructure tools.

distributed-systems security
4 min
Cloudflare

Making Rust Workers reliable: panic and abort recovery in wasm‑bindgen

Rust panics in Cloudflare Workers were fatal and poisoned the entire worker instance, making applications unreliable when unhandled errors occurred.

security observability
4 min
Cloudflare

Moving past bots vs. humans

Traditional bot detection mechanisms are becoming ineffective as AI assistants and privacy proxies blur the distinction between legitimate users and automated abuse.

security api-design
4 min
Cloudflare

Orchestrating AI Code Review at scale

Cloudflare needed to scale code review processes across their engineering organization while maintaining code quality and security standards without overwhelming human reviewers.

ml-systems api-design
3 min
Cloudflare

The AI engineering stack we built internally — on the platform we ship

Cloudflare needed to build an internal AI engineering stack that could handle massive scale (20 million requests, 241 billion tokens) while dogfooding their own platform products.

api-design ml-systems
4 min
Cloudflare

Agents Week: network performance update

Cloudflare needed to improve request handling performance across its global network to maintain competitive advantage over other CDNs.

distributed-systems load-balancing
4 min
Cloudflare

Introducing Agent Lee - a new interface to the Cloudflare stack

Users had to manually navigate multiple tabs and interfaces within the Cloudflare dashboard to troubleshoot issues and manage their infrastructure, creating friction in the workflow.

api-design security
4 min
Cloudflare

Introducing the Agent Readiness score. Is your site agent-ready?

Website owners needed a way to measure and understand how well their sites support AI agents and web crawlers for indexing and integration.

api-design observability
4 min
Cloudflare

Redirects for AI Training enforces canonical content

AI crawlers were ingesting deprecated and non-canonical content despite soft directives like robots.txt, requiring a way to enforce canonical versions without modifying origin infrastructure.

caching security
4 min
Cloudflare

Securing non-human identities: automated revocation, OAuth, and scoped permissions

Developers lack effective mechanisms to prevent unauthorized access when API credentials are accidentally exposed or compromised.

security api-design
4 min
Cloudflare

500 Tbps of capacity: 16 years of scaling our global network

How to scale a global content delivery and DDoS mitigation network to handle massive throughput (500 Tbps) while maintaining capacity to protect against record-breaking attacks.

load-balancing distributed-systems
3 min
Cloudflare

Cloudflare targets 2029 for full post-quantum security

Cloudflare needed to prepare its global infrastructure and services for the threat of quantum computing attacks on current cryptographic standards before 2029.

security distributed-systems
4 min
Cloudflare

From bytecode to bytes: automated magic packet generation

Cloudflare needed to automatically generate malware trigger packets for BPF bytecode analysis, which previously required hours of manual work.

security
3 min
Cloudflare

How we built Organizations to help enterprises manage Cloudflare at scale

Cloudflare needed to enable enterprise customers to manage multiple accounts and resources under a unified organizational structure with centralized authorization and access control.

api-design security
4 min
Cloudflare

Welcome to Agents Week

How to enable AI agents to operate effectively at the edge of the internet with the security, performance, and reliability characteristics of Cloudflare's existing infrastructure.

distributed-systems security
4 min
Cloudflare

Cloudflare Client-Side Security: smarter detection, now open to everyone

Detecting sophisticated client-side security threats like zero-day exploits while minimizing false positives in real-time across millions of requests.

security ml-systems
4 min
Cloudflare

Introducing EmDash — the spiritual successor to WordPress that solves plugin security

WordPress plugins pose significant security risks because they run with unrestricted access to the entire system, requiring a safer plugin architecture that isolates untrusted code.

security microservices
4 min
Cloudflare

Introducing Programmable Flow Protection: custom DDoS mitigation logic for Magic Transit customers

Magic Transit customers needed the ability to define and enforce custom DDoS mitigation logic for proprietary and non-standard UDP protocols without being limited to Cloudflare's pre-built detection rules.

security distributed-systems
4 min
Cloudflare

Our ongoing commitment to privacy for the 1.1.1.1 public DNS resolver

How to design a public DNS resolver that prioritizes user privacy while maintaining performance and trustworthiness at scale.

security distributed-systems
4 min
Cloudflare

Sandboxing AI agents, 100x faster

How to safely execute untrusted AI-generated code with minimal latency and resource overhead.

security edge-computing
4 min
Cloudflare

AI Security for Apps is now generally available

Organizations struggle to discover and secure AI-powered applications across their infrastructure, especially shadow AI deployments that teams spin up without central oversight, creating security blind spots.

security api-design
4 min
Cloudflare

Active defense: introducing a stateful vulnerability scanner for APIs

Standard defensive security tools miss logic flaws and vulnerabilities in APIs because they lack understanding of stateful API interactions and business logic flows.

security api-design
3 min
Cloudflare

Always-on detections: eliminating the WAF “log versus block” trade-off

Traditional WAFs force a trade-off between logging (risking missed attacks) and blocking (risking false positives), requiring extensive manual tuning to balance security coverage with availability.

security real-time-systems
4 min
Cloudflare

Announcing Cloudflare Account Abuse Protection: prevent fraudulent attacks from bots and humans

Traditional bot-blocking approaches are insufficient for preventing account abuse (e.g., credential stuffing, fake account creation) because sophisticated attacks increasingly involve human-like behavior or actual humans, bypassing conventional bot detection.

security rate-limiting
3 min
Cloudflare

Building a security overview dashboard for actionable insights

Security teams were overwhelmed by the volume of raw security data across Cloudflare's platform, making it difficult to prioritize and act on vulnerabilities and threats efficiently.

security observability
3 min
Cloudflare

Complexity is a choice. SASE migrations shouldn’t take years.

Enterprise SASE (Secure Access Service Edge) migrations traditionally take 18+ months due to architectural complexity, requiring organizations to integrate networking and security across global infrastructure.

security distributed-systems
3 min
Cloudflare

Fixing request smuggling vulnerabilities in Pingora OSS deployments

Cloudflare's open-source Pingora proxy had request smuggling vulnerabilities when deployed as an ingress proxy, allowing attackers to exploit HTTP parsing discrepancies to bypass security controls and route malicious requests.

security api-design
3 min
Cloudflare

From legacy architecture to Cloudflare One

Organizations struggle to migrate from legacy network security architectures to modern SASE (Secure Access Service Edge) solutions, facing risks from accumulated technical debt and complex dependencies in their existing infrastructure.

security microservices
3 min
Cloudflare

From the endpoint to the prompt: a unified data security vision in Cloudflare One

Organizations face fragmented data security across endpoints, network traffic, cloud applications, and AI prompts, making it difficult to enforce consistent data loss prevention (DLP) policies as data flows through diverse channels including RDP sessions and AI copilots.

security api-design
3 min
Cloudflare

How Automatic Return Routing solves IP overlap

Enterprises connecting multiple private networks via tunnels frequently encounter overlapping IP address ranges (e.g., multiple sites using 10.0.0.0/8), making traditional routing tables unable to determine which tunnel should receive return traffic.

distributed-systems security
4 min
Cloudflare

Introducing Custom Regions for precision data control

Customers needed precise control over where their data is processed geographically to meet diverse compliance requirements (e.g., GDPR, data sovereignty laws), but existing pre-defined regional options were too coarse-grained to cover all regulatory and performance needs.

distributed-systems security
4 min
Cloudflare

Investigating multi-vector attacks in Log Explorer

Security teams lacked a unified view across multiple Cloudflare datasets, making it difficult to identify and investigate multi-vector attacks that span different attack surfaces and log sources.

observability security
3 min
Cloudflare

Standing up for the open Internet: why we appealed Italy’s "Piracy Shield" fine

Italy's 'Piracy Shield' system forces Internet infrastructure providers like Cloudflare to block content at the network level without proper oversight or due process, leading to disproportionate overblocking of legitimate content.

security api-design
4 min
Cloudflare

Translating risk insights into actionable protection: leveling up security posture with Cloudflare and Mastercard

Organizations struggle with Internet-facing blind spots in their attack surface, lacking continuous visibility into security gaps and risk exposures across their external-facing assets.

security
4 min