Security

Ship fearlessly on the open Internet

Cloudflare's unified security platform blocks exploits, bots, and record-breaking DDoS attacks in seconds backed by hundreds of Tbps of global capacity, giving you the comfort to focus on code-writing, not fire-fighting.

Instant hardening

Deploy enterprise-grade WAF, rate-limiting, mTLS, and Bot Management with a single DNS change no agents, no appliances.

Planet-scale defense

The largest attacks on the planet, mitigated in under a minute. Our autonomous systems block multipe hyper-volumetric attacks every day.

Single control plane

One API and dashboard covers edge rules, logs, and analytics, and integrates with CI/CD for policy-as-code.

Proven security infrastructure, protecting the Internet at scale

The same security platform protecting 20% of the Internet battle-tested across billions of requests and millions of attacks daily. Secure with the same primitives we use to defend our own network.

[Background Pattern]

Perfect for high-risk, high-value targets

Where security isn't optional it's business critical.

Fintech, e-commerce, SaaS platforms

Where fraud & bots erode margins

Gaming, media streaming, ticket drops

Prime targets for L7 DDoS spikes

AI products

To safeguard model endpoints and customer data

Crypto exchanges & financial markets

Targets for fraud, latency attacks, and regulatory scrutiny

Security that scales

Everything you need to secure applications, APIs, and infrastructure on Cloudflare's global network.

Managed WAF rules

Cloudflare named Leader in Forrester Wave 2025; WAF rules updated continuously to stop emerging vulnerabilities before your patch cycle.

Adaptive DDoS mitigation

Anycast absorbs and auto-routes traffic; mitigations trigger in seconds with no manual tuning.

Bot management

With ML heuristics. Detects automation in milliseconds scores each request, and offers challenge-less Turnstile for good users.

API shield

Schema validation + mTLS. Protects REST/GraphQL traffic and enforces client identity no SDK required.

Rate limiting

Granular per-path policies block floods without hurting legit users.

Automatic TLS & HTTP/3

Free, auto-renewed certificates and modern transport security your users don't have to think about.

Security analytics & logpush

Real-time dashboards plus raw logs to R2/S3/SIEM for forensics and compliance proof.

Page shield & content security

Detect Magecart-style client-side tampering before customers' card data leaks.

Zero Trust access

Protect internal apps and developer tools with identity-based access, device posture checks, and single sign-on no VPN required.

Deploy security in minutes, not months

Start with a single DNS change and scale to enterprise-grade protection.

Security that scales with your business

From startup to enterprise the same security platform that protects 20% of the Internet.

Discord

"

Discord is where the world builds relationships. Cloudflare helps us deliver on that mission, connecting our internal engineering team to the tools they need. With Cloudflare, we can rest easy knowing every request to our critical apps is evaluated for identity and context a true Zero Trust approach. "

[Mark Smith]

Mark Smith Director of Infrastructure

Powerful primitives, seamlessly integrated

Build on the infrastructure powering 20% of the Internet.

Cloudflare powers
1 in 5 sites on the Internet

Trusted by the teams you trust.

ShopifyCharacter.AIIntercomDoorDashDiscordZendeskLovablenpmSiteGPTLiveblocksLeaguedSeatedPeopleShopifyCharacter.AIIntercom

Pause

[Duncan Davidson]

For Shopify, the real challenge is not about how many different pieces of complex technology we can use but the opposite. Cloudflare helps us find a simple way to achieve something very complex that we can scale and maintain.

Duncan Davidson, VP of Developer Productivity, Shopify

And thousands more...

Compute

Browser Run Automated browsers

Containers Any language, anywhere

Durable Objects Stateful compute

Sandboxes Secure code execution

Workers Global serverless functions

Workers for Platforms Programmable Platform Solutions

Workflows Process orchestration

Storage

Artifacts Git-native versioned storage

D1 Serverless SQL

Data Platform Ingest, Catalog & Query

Hyperdrive Global databases

Queues Message processing

R2 Egress-free storage

KV Ultra-fast key-value storage

AI

Agents Build stateful AI agents

AI Gateway AI observability

AI Search Instant retrieval

Vectorize Vector database

Workers AI Edge AI models

SASE / Zero Trust

SASE Cloudflare SASE platform

Access Zero trust access to private resources

CASB SaaS and cloud posture

Data Loss Prevention Protect sensitive data

Gateway Web filtering

Browser Isolation Secure web browsing

WAN Cloud-delivered networking

Email Security Phishing protection

Security

DDoS Protection Mitigation Solutions

Rate Limiting Abuse prevention

SSL Secure Your Site with SSL

Turnstile A CAPTCHA Replacement Solution

WAF Web Application Firewall

Magic Transit DDoS Protection for Networks

Client-Side Security Prevent browser supply chain attacks

Bot Management Block bad bots

Network & Content Delivery

CDN Faster delivery & caching

DNS Fast DNS

Load Balancing Zero downtime

TURN / SFU Real-time infra

Analytics Web Performance & Security

Build without boundaries

Join thousands of developers who've eliminated infrastructure complexity and deployed globally with Cloudflare. Start building for free no credit card required.

Start building for free View docs

No cold starts or region complexity SASE and Zero Trust without the complexity Deploy to 330+ cities instantly Defend against the Internet's biggest DDoS attacks Predictable pricing without surprises Identity-aware Zero Trust access that retires your VPN Battle-tested infrastructure powering millions CDN, WAF, and DNS faster than the public Internet No cold starts or region complexity SASE and Zero Trust without the complexity Deploy to 330+ cities instantly Defend against the Internet's biggest DDoS attacks Predictable pricing without surprises Identity-aware Zero Trust access that retires your VPN Battle-tested infrastructure powering millions CDN, WAF, and DNS faster than the public Internet