customers in full
blocking mode

4 out of 5

who try us
choose us


apps currently


hybrid and multi-cloud platforms supported

It's time to demand more from your WAF.

Our next-gen web application firewall (WAF) and runtime application self protection (RASP) increase security and maintain reliability without sacrificing velocity—all at the lowest total cost of ownership.

Signal Sciences
Next-Gen WAF

Legacy WAF


Empower all teams with intuitive dashboards and integrations that show insights and attack details



Provide reliable blocking decisions across OWASP Top 10, ATO, feature abuse, and more



Run anywhere with the lowest TCO, no signatures to manage, and no impact on performance


Trusted by top brands

cybrary datadog oreilly grubhub
Ben Rockwood

"Signal Sciences gives us powerful visibility and remediation capabilities that are consumable by the entire organization, and for a wide variety of skill levels. It allows everyone to have continuous situational awareness and sleep better at night."

Ben Rockwood

Director of IT & Operations

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Jon Oberheide

"The Signal Sciences approach gives us situational awareness about where and how our applications are attacked so that we can best protect ourselves and our customers."

Jon Oberheide

Co-Founder & CTO

appnexus supercell wework shinola

Awards and Reviews

Gartner Peer Insights Customers' Choice
Computing DevOps Excellence Award
InfoWorld Technology of the Year
See more accolades

Any App

Unparalleled Application Coverage

Protect on-premise, multi-cloud and hybrid-cloud apps, written in any language, within containers and serverless functions—all within a single management UI.

Any Attack

Unmatched Threat Protection

Immediate protection against OWASP vulnerabilities without tuning any rules. Go further to see and block feature abuse, account takeover, application denial of service, bad bots, and more.

Any DevOps Toolchain

Superior Visibility

Receive data around blocked attacks, network analysis, and anomalous activity with the most robust integrations into DevOps and SIEM tools.

Welcome to the next generation of security.

We make web applications more secure. Simple as that. We provide unparalleled web protection that security, operations, and engineering teams actually want to use.

We’re not just rethinking what’s possible with application security—we’re revolutionizing it.

Learn more about us

Gartner Peer Insights Customers’ Choice badge is a trademark and service mark of Gartner, Inc., and/or its affiliates, and is used herein with permission. All rights reserved. Gartner Peer Insights Customers’ Choice constitute the subjective opinions of individual end-user reviews, ratings, and data applied against a documented methodology; they neither represent the views of, nor constitute an endorsement by, Gartner or its affiliates.