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
Planet-scale defense
Single control plane
Perfect for high-risk, high-value targets
Where security isn't optional — it's business critical.
Fintech, e-commerce, SaaS platforms
Gaming, media streaming, ticket drops
AI products
Crypto exchanges & financial markets
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.
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. "
Cloudflare powers
1 in 5 sites on the Internet
Trusted by the teams you trust. And thousands more...
Powerful primitives, seamlessly integrated
Build on the infrastructure powering 20% of the Internet.
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.