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WAF

Protect your applications without sacrificing performance

Cloudflare WAF inspects HTTP/S requests at the edge, using managed and custom rules to identify and block malicious payloads before they can compromise your application.

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Zero-Day Protection at Scale

When a new vulnerability emerges (like Log4j), our security team writes and deploys a rule that protects our entire network in hours or minutes. Developers are often protected before they even have time to patch their own code.

Low False Positive Rate

Our Managed Rulesets are run against massive volumes of diverse traffic, allowing us to fine-tune them to be highly effective without blocking legitimate users.