Cloudflare Developer Documentation

Comprehensive documentation for building on Cloudflare's developer platform, covering serverless computing, AI, databases, security, networking, and infrastructure services.

Product Categories

Application Performance

Argo Smart Routing: Route traffic across the fastest network paths to reduce latency and packet loss
Automatic Platform Optimization: Improve WordPress site performance by serving from Cloudflare's global network
Cache / CDN: Make websites faster by caching content across Cloudflare's global server network
China Network: Fast, global network serving visitors inside and outside of China
DNS: Deliver excellent performance and reliability to your domain
Google Tag Gateway: Add data security and privacy controls when using Google Tag Manager
Health Checks: Monitor IPs or hostnames and get notified of issues
Load Balancing: Maximize application performance and availability
Smart Shield: Safeguard your origin with just a few clicks
Spectrum: Secure and accelerate any TCP or UDP-based application
Speed: Improve the performance of your website or web application
SSL/TLS: Encrypt web traffic to prevent data theft and tampering
Waiting Room: Create a virtual waiting room to manage peak traffic
Web Analytics: Get vital web analytics for your website
Web3: Gateways to networks for developing applications without worrying about running infrastructure

Application Security

API Shield: Identify and address API vulnerabilities
Bots: Protect your domain from bad bot traffic
Client-side Security: Provide client-side protection for website visitors
Challenges: Verify visitors are not bots with lightweight challenges
DDoS Protection: Protect against DDoS attacks automatically
DMARC Management: Protect your email domain and stop brand impersonation
Firewall Rules: Examine incoming HTTP traffic against powerful filters (deprecated, replaced by WAF custom rules)
Key Transparency Auditor: Secure the distribution of public keys in E2EE messaging systems
Secrets Store: Encrypt and store sensitive information as secrets
Security Center: Enhance your security posture with security products and one-click solutions
Turnstile: Smart CAPTCHA alternative
WAF: Filter incoming traffic and protect against web app vulnerabilities

Cloudflare One

Cloudflare Network Firewall: Protect your enterprise network with advanced firewall-as-a-service protection
Cloudflare One: Replace legacy security perimeters with Cloudflare's network
Cloudflare WAN: Replace legacy WAN and securely connect any traffic source to Cloudflare's network
Data Localization Suite: Control where Cloudflare stores and inspects data
Multi-Cloud Networking: Automate resource discovery and simplify managing public cloud infrastructure

Consumer Services

1.1.1.1 (DNS Resolver): A blazing fast DNS resolver built for private browsing
Radar: Investigate Internet usage around the world using Cloudflare's data
WARP Client: Allows individuals or organizations to have a faster, more secure connection to the Internet

Core Platform

AI Crawl Control: Analyze and control third-party AI crawlers in your website
Analytics: Visualize performance, security, and reliability data
Billing: Manage billing, plans, and subscriptions for your account
Cloudflare Fundamentals: Learn about using Cloudflare and features that span across products
Log Explorer: Store and explore your logs in the Cloudflare dashboard or API
Logs: Access detailed logs with metadata from Cloudflare products
Network: Manage Cloudflare network settings for your website
Notifications: Define what you want to be notified about and how
Pulumi: Create, deploy, and manage Cloudflare resources in various programming languages
Randomness Beacon: Explore drand, a distributed service providing randomness to applications
Reference Architecture: Guides and diagrams explain Cloudflare products and IT architectures
Registrar: Buy and renew your domain at cost, add security to your DNS records
Rules: Modify incoming requests, change Cloudflare settings, or trigger actions
Ruleset Engine: Create rulesets and rules for different Cloudflare products
Support: Cloudflare Support-focused documentation
Tenant: Provision and manage Cloudflare accounts and services for your team or customers
Terraform: Define and store Cloudflare configurations in source code repositories
Time Services: Cloudflare's suite of time services: NTP, NTS, and Roughtime
Cloudflare Tunnel: Connect your origin servers, APIs, and services to Cloudflare without a publicly routable IP address
Version Management: Safely manage configurations with versioning, staging, and rollbacks

Developer Platform

AI & Machine Learning

Agent Lee: AI co-pilot built into the Cloudflare dashboard
Agents: Build AI-powered agents to perform tasks, persist state, browse the web, and communicate in real-time
AI: Run AI models on Cloudflare's global network
AI Gateway: Observe and control your AI applications
AI Search: Create fully managed RAG pipelines for your AI applications
Workers AI: Run machine learning models, powered by serverless GPUs, on Cloudflare's global network

Compute & Serverless

Workers: Build and deploy serverless applications globally with low latency
Dynamic Workers: Spin up isolated Workers on demand to execute code
Containers: Enhance your Workers with serverless containers
Pages: Build full-stack, serverless applications globally with minimal configuration
Hyperdrive: Accelerate database queries to make databases fast globally

Databases & Storage

D1: Create managed, serverless databases with SQL semantics
Durable Objects: A special kind of Cloudflare Worker combining compute with storage
KV: Global, low-latency, key-value data storage
R2: S3-compatible object storage without egress fees
Queues: Reliable message delivery for the entire Cloudflare developer platform
Workflows: Build durable, stateful multi-step workflows on Cloudflare's global network

Email

Email Routing: Create and manage email addresses and route to your preferred inbox
Email Service: Send transactional emails at scale with Cloudflare Email Service

Media & Streaming

Images: Store, transform, optimize, and deliver images at scale
Stream: Upload, transcode, and embed videos at scale
MoQ: Protocol for live media

Networking & Security

argo-tunnel: Securely connect origin servers without a public IP
Private Networking: Connect your infrastructure privately to Cloudflare
Sentry: Error tracking and performance monitoring
Vectorize: Vector database for AI applications
Browser Rendering: Control and interact with headless browser instances programmatically

Additional Resources

Cloudflare for Platforms: Build your own multi-tenant platform using Cloudflare as infrastructure
BYOIP: Bring your own IP addresses to Cloudflare
Sandbox: Isolated environment for testing and development
Python Workers: Run Python workloads on Cloudflare Workers

Getting Started

1. Create a Cloudflare Account

2. Choose Your Tools

For static sites: Use Pages with automatic deployments
For dynamic apps: Use Workers with KV, D1, or Durable Objects
For AI applications: Use Workers AI with Vectorize or AI Gateway
For databases: Use D1 for SQL or Durable Objects for stateful workloads

3. Install Wrangler CLI

npm install -g wrangler

4. Deploy Your First Worker

wrangler init my-worker
cd my-worker
wrangler deploy

Architecture Overview

Global Network

Cloudflare operates in 300+ cities across 100+ countries, providing:

100% uptime SLA for enterprise
DDoS mitigation at the network edge
Automatic SSL/TLS certificate management
Built-in caching and CDN

Security Stack

Edge Firewall: WAF, DDoS Protection, Bot Management
API Protection: API Shield, Rate Limiting, mTLS
Access Control: Zero Trust Network Access, SSO, MFA
Data Protection: Secrets Store, DLP, Certificate Management

Developer Experience

Wrangler CLI: Local development and deployment
Dashboard: Visual management of all services
REST API: Programmatic access to all features
Terraform/Pulumi: Infrastructure as code support