How Cloudflare Uses engineering

37 engineering articles about engineering from Cloudflare's engineering team

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Using AI to chart a course for our post-quantum migration

AWSCloudflare WorkersengineeringFortranJavaScriptJSONJWTKubernetesNode.jsReactRustSwiftTypeScriptVYAML

18 min read

Includes Code

Cloudflare

Advanced

Introducing cf: the agentic CLI for the entire Cloudflare API

AWSClaudeCloudflare WorkersengineeringesbuildFortranJavaScriptJSONKubernetesNode.jsPythonRustSwiftTypeScriptVite

13 min read

Includes Code

Cloudflare

Advanced

Supporting native Rust in Workers with the new Emscripten target for wasm-bindgen

AWSCloudflare WorkersEmscriptenengineeringJavaScriptJSONKubernetesnode.jsNode.jsRustSQLiteSwiftTypeScriptWebAssemblyWebSocket

16 min read

Includes Code

Cloudflare

Intermediate

EmDash 1.0: the stable CMS with a secure plugin registry

AstroAWSCloudflare WorkersengineeringFortranJavaScriptJSONKubernetesNode.jsPHPRustSQLSwiftTypeScriptWebAssembly

16 min read

Includes Code

Cloudflare

Advanced

Introducing Forge: the open source pipeline for generating SDKs, CLIs, docs, and more

ApacheAWSCloudflare WorkersengineeringGraphQLJavaScriptJSONKubernetesNode.jsPHPPythonRustTerraformTypeScriptVite

10 min read

Includes Code

Cloudflare

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Four months of VoidZero at Cloudflare: making the open-source JavaScript toolchain faster for all humans and agents

BabelCSSengineeringESLintGraphQLHTMLJavaScriptJSONLessPrettierReactRustTypeScriptViteYAML

9 min read

Includes Code

Cloudflare

Advanced

Agents can now set up your website’s security with Turnstile Spin

AWSClaudeCloudflare WorkersengineeringFortranJavaScriptJSONKubernetesNode.jsRustSwiftT5TypeScriptVWebAssembly

8 min read

Includes Code

Cloudflare

Advanced

Saving another 100TB of RAM with math (and Rust)

AWSCloudflare WorkersengineeringFortranJavaScriptJSONKubernetesNGINXNode.jsReactRustSQLSwiftTypeScriptWebAssembly

18 min read

Includes Code

Cloudflare

Advanced

Introducing context-aware vulnerability discovery and remediation with Cloudflare Managed Defense and OpenAI Daybreak models

Artificial IntelligenceAWSCloudflare WorkersengineeringFortranGPTJavaScriptJSONKubernetesNode.jsRustSQLSwiftTypeScriptWebAssembly

10 min read

Includes Code

Cloudflare

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How we saved 100 terabytes of memory by optimizing 1.1.1.1’s DNS cache

AWSCloudflare WorkersengineeringFortranJavaScriptJSONKubernetesNode.jsReactRustSQLSwiftTypeScriptViteWebAssembly

15 min read

Includes Code

Cloudflare

Advanced

The Cloudflare Blog – Brought to you by EmDash

AstroAWSCloudflare WorkersengineeringFortranHTMLJavaScriptJSONKubernetesNode.jsPlanetScalerampRustSwiftTypeScript

14 min read

Includes Code

Cloudflare

Advanced

From all-or-nothing to task-based OAuth consent

AWSCloudflare WorkersengineeringFortranJavaScriptJSONKubernetesNode.jsOAuthReactRustSQLSwiftTypeScriptWebAssembly

9 min read

Includes Code

Cloudflare

Advanced

Secure all your internal vibe-coded applications — in one click

AWSCloudflare WorkersengineeringFortranJavaScriptJSONJWTKubernetesLuaNGINXNode.jsReactRustSwiftTypeScript

10 min read

Includes Code

Cloudflare

Advanced

Everything we launched during Agents Week

AstroAWSCloudflare WorkersengineeringFortrangRPCJavaScriptJSONKubernetesNode.jsPythonRustSwiftTypeScriptWebAssembly

9 min read

Includes Code

Cloudflare

Advanced

Introducing Radar Researcher: An AI tool for exploring Internet data in plain language

AWSCloudflare WorkersengineeringFortranHTMLJavaScriptJSONKubernetesNode.jsRustSQLSQLiteSwiftTypeScriptWebAssembly

14 min read

Includes Code

Cloudflare

Advanced

Building an open Agentic Internet: readable, discoverable, callable, and payable

AWSCloudflare WorkersCSSengineeringFortranHTMLJavaScriptJSONKubernetesNode.jsReactRustSwiftTypeScriptWebAssembly

13 min read

Includes Code

Cloudflare

Advanced

The next generation of MCP

AWSCloudflare WorkersengineeringJavaScriptJSONKubernetesNode.jsOAuthPythonReactRustServerlessSQLiteSwiftTypeScript

15 min read

Includes Code

Cloudflare

Advanced

How we’re rethinking work at Cloudflare with Cloudflare OS

AWSCloudflare WorkersengineeringfinanceFortranGitJavaScriptJSONKubernetesNode.jsRustSQLSwiftTypeScriptWebAssembly

18 min read

Includes Code

Cloudflare

Advanced

WriteGuard: fine-grained controls for MCP Servers

AWSCloudflare WorkersengineeringFortranGitLabHTMLJavaScriptJSONKubernetesNode.jsOAuthReactRustSwiftTypeScript

11 min read

Includes Code

Cloudflare

Advanced

Cloudflare OS: an open platform for agents, apps, and work

AWSCloudflare WorkersengineeringFortranJavaScriptJSONKubernetesNode.jsOAuthReactRustSQLiteSwiftTypeScriptWebAssembly

15 min read

Includes Code

Cloudflare

Advanced

The Agent Development Lifecycle has arrived on Cloudflare

AstroCloudflare WorkersengineeringGitHub ActionsJavaScriptJSONKubernetesnode.jsNode.jsrampReactRustTypeScriptViteYAML

14 min read

Includes Code

Cloudflare

Advanced

How Cloudflare enforces engineering standards using AI

API GatewayAstroAWSCloudflare WorkersengineeringFortranJavaScriptJSONKubernetesNode.jsReactRustSwiftTypeScriptWebAssembly

12 min read

Includes Code

Cloudflare

Advanced

Introducing the Billable Usage API: programmatic cost visibility for Cloudflare

AWSAzureChatGPTClaudeCloudflare WorkersengineeringGoogle CloudJavaScriptJSONKubernetesNode.jsOracleRustSwiftTypeScript

9 min read

Includes Code

Cloudflare

Advanced

Build your own vulnerability harness

AWSCloudflare WorkersDockerengineeringFortranJavaScriptKubernetesLuaNode.jsPythonReactRustSQLiteSwiftTypeScript

28 min read

Includes Code

Cloudflare

Advanced

Scaling Security Insights: how we achieved a 10x increase in global scanning capacity

ApacheApache KafkaAWSCloudflare WorkersengineeringFortranJavaScriptKubernetesNode.jsReactRustSQLSwiftTypeScriptWebAssembly

14 min read

Includes Code

Cloudflare

Advanced

Your AI bill is out of control. Cloudflare can fix it now.

AWSClaudeCloudflare WorkersengineeringfinanceGPTJavaScriptJSONJWTKubernetesNode.jsOAuthRustSwiftTypeScript

11 min read

Includes Code

Cloudflare

Advanced

How we built Cloudflare's data platform and an AI agent on top of it

ApacheContent Security PolicyengineeringGoogle CloudJavaScriptJSONKubernetesLessNode.jsReactRustSQLTransformerTypeScriptYAML

19 min read

Includes Code

Cloudflare

Advanced

Announcing Claude Managed Agents on Cloudflare

AWSClaudeCloudflare WorkersDatadogengineeringFortranJavaScriptKubernetesNode.jsReactRustSplunkSwiftTypeScriptWebAssembly

12 min read

Includes Code

Cloudflare

Advanced

Project Glasswing: what Mythos showed us

AWSCloudflare WorkersengineeringFortranGPTJavaScriptKubernetesNode.jsReactRustSQLSwiftTypeScriptViteWebAssembly

17 min read

Includes Code

Cloudflare

Advanced

Our billing pipeline was suddenly slow. The culprit was a hidden bottleneck in ClickHouse

AWSCloudflare WorkersengineeringFortranJavaScriptKubernetesNode.jsReactRocketRustSQLSwiftTypeScriptViteWebAssembly

14 min read

Includes Code

Cloudflare

Intermediate

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

AWSCloudflare WorkersengineeringFortranJavaScriptJSONKubernetesNode.jsOAuthPlanetScaleReactREST APIRustSwiftTypeScript

11 min read

Includes Code

Cloudflare

Advanced

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

AWSCloudflare WorkersengineeringFortranGitJavaScriptKubernetesMySQLNode.jsOAuthPlanetScaleRustSQLiteSwiftTypeScript

12 min read

Includes Code

Cloudflare

Advanced

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

ElasticsearchengineeringGitLabGitLab CIGPTJSONJWTKubernetesNode.jsOAuthPrometheusReactRustTypeScriptYAML

21 min read

Includes Code

Cloudflare

Advanced

Orchestrating AI Code Review at scale

ClaudeDockerengineeringGitLabGitLab CIGPTJSONKubernetesNode.jsPrometheusReactSQLTypeScriptVaultXML

28 min read

Includes Code

Cloudflare

Advanced

Building the foundation for running extra-large language models

AWSCachingCloudflare WorkersengineeringFortranJavaScriptJSONKubernetesNode.jsReactRustSQLSwiftTypeScriptWebAssembly

13 min read

Includes Code

Cloudflare

Advanced

Inside Gen 13: how we built our most powerful server yet

AWSCDNCloudflare WorkersengineeringFortranJavaScriptKubernetesNode.jsReactRustSQLSwiftTypeScriptViteWebAssembly

19 min read

Includes Code

Cloudflare

Advanced

The most-seen UI on the Internet? Redesigning Turnstile and Challenge Pages

AWSCloudflare WorkersengineeringFortranJavaScriptKubernetesModalNode.jsReactRustSQLSwiftTypeScriptViteWebAssembly

21 min read

Includes Code

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