Streamlined WAF Management: easily manage a single WAF configuration for all your enterprise domains. Read more

Web Application Firewall

Modern protections for modern applications

Enterprises rely on applications and APIs for growth--and with our world-class web application firewall, expanding attack surfaces and novel attacks never get in the way.

Our powerful web application firewall is integrated with the rest of our leading cloud-delivered application security portfolio.

We stop modern application security threats

2021 saw more than 20K vulnerabilities to exploit - the greatest number of vulns on record.

There are more than 5 billion stolen credentials on the dark web to fuel credential stuffing that leads to account takeover.

Attackers have web servers in the crosshairs as they are the top IT asset targeted - in 50% of attacks.

Companies need 16 days to patch - leaving attackers weeks to exploit vulnerabilities.

WAF layered defenses

WAF Managed Rules Engine
  • Cloudflare managed rules offer advanced zero-day vulnerability protections.
  • Core OWASP rules block familiar “Top 10” attack techniques.
  • Custom rulesets deliver tailored protections to block any threat.
  • WAF Machine Learning complements WAF rulesets by detecting bypasses and attack variations of XSS and SQLi attacks.
  • Exposed credential checks monitor and block use of stolen/exposed credentials for account takeover
  • Sensitive data detection alerts on responses containing sensitive data.
  • Advanced rate limiting prevents abuse, DDoS, brute force attempts along with API-centric controls.
  • Flexible response options allow for blocking, logging, rate limiting or challenging.
WAF Managed Rules Engine

Advanced WAF security

Stop account takeover

Prevent successful credential stuffing attacks from taking over user accounts.

Prevent data exfiltration

Stop data leaks to keep sensitive company data safe and private.

Block credential stuffing

See and stop abusive login attacks using stolen credentials.

Cloudflare WAF Advantages

internet globe

Our global 155 Tbps network sees tens of millions of requests per second.

network virtual backbone

Complete application security from the same cloud network for an effective and uniform security posture.

Faster, easier security deployments for quicker mitigations and time-to-value.

Leader crown blue

A single Rust-based engine drives portfolio protections for no gaps in security.

Security waf blue

Zero-day protections are in place fast for immediate virtual patching. Rules are deployed globally in seconds.

Our network's unparalleled visibility into threats yields the sharpest security and most effective machine learning.

Learn how our WAF uses Machine Learning

World-class application security from Cloudflare

The Cloudflare web application firewall (WAF) is the cornerstone of our advanced application security portfolio that keeps applications and APIs secure and productive, thwarts DDoS attacks, keeps bots at bay, detects anomalies and malicious payloads, all while monitoring for browser supply chain attacks.

Bot Management

Deliver great customer experiences by protecting against bot attacks that harm web properties.

API Shield

Keep APIs safe and productive with API discovery, schema validation, mTLS, DLP, anomaly detection, and more.

Page Shield

Protect against 3rd party Magecart attacks carried out in visitors' browsers.

Cloudflare security leadership

Named a "Customers' Choice" for WAAP in the 2022 Gartner Peer Insights report.

Innovation Leader in the Frost & Sullivan Frost Radar™: Global Holistic Web Protection Market 2020 Report.

'Leader' in The Forrester Wave for DDoS Mitigation Solutions 2021.

Trusted by millions of Internet properties

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Get access to Enterprise-only features:

24/7/365 support via chat, email, and phone
24/7/365 support via chat, email, and phone
Phone, chat, and email support with median response time of 15 minutes. For critical business issues, Enterprise customers have access to our 24/7/365 emergency phone support hotline.
100% uptime guarantee with 25x reimbursement SLA
100% uptime guarantee with 25x reimbursement SLA
In the rare event of downtime, Enterprise customers receive a 25x credit against the monthly fee, in proportion to the respective disruption and affected customer ratio.
Predictable flat-rate pricing for usage based products
Predictable flat-rate pricing for usage based products
Only enterprise customers can negotiate flat rate pricing on Argo, Rate limiting, Workers, Load Balancing, Live Stream and more.
Advanced Cache controls
Advanced Cache controls
Enterprise customers have lower TTLs and can purge cache by tag or host.
Bot management
Bot management
Use the power of Cloudflare's network to intelligently manage bot traffic to your application in order to prevent credential stuffing, inventory hoarding, content scraping and other types of fraud.
Access to raw logs
Access to raw logs
Take charge of your data and run your own analytics using raw log data from web assets on Cloudflare's network.
Firewall analytics
Firewall analytics
Understand the impact of your WAF configuration. Firewall Analytics let you know if a rule is effective by illustrating the impact in an easy to digest format.
Role based access
Role based access
Provide role-based access throughout your organization. Each user is given set permissions, individual API keys, and optional two-factor authentication.
Network prioritization
Network prioritization
Enterprise web assets are placed on Cloudflare dedicated IP ranges, providing prioritized routing and protection to ensure maximum speed and availability.

Have Questions?

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