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Next-Generation Web Application Firewall (WAF)

Complete Protection for Your Apps and APIs, in the cloud, datacenter, containers, or serverless

Signal Sciences makes it easy to protect the web layer assets that drive your business without dedicating headcount or additional resources.

999 %
of customers in full blocking mode IN PRODUCTION
999 /5
Protected App
999 K+
Hybrid Cloud
999 +

Modernize Your Application / API Protection While Lowering Your TCO

Your application footprint is growing more complex and varied with faster development cycles and the shift to cloud–whether private or public. Legacy rules-based web application firewalls (WAFs) don’t scale for the digital transformation world, and a next-gen approach is needed.

Signal Sciences Provides the industry leading NGWAF
that solves the 5 key problems of legacy WAFs:

False Positives

False Positives

90% of Signal Sciences customers utilize full blocking mode within hours/days, rather than being stuck in monitor or “learning” mode due to false positives



Far beyond OWASP Top Ten, Signal Sciences provides coverage over Malicious bots, Account Takeover/Credential Stuffing, API Abuse, App DDoS, Advanced Rate Limiting, Virtual Patching, and more



Signal Sciences patented performance guaranteeing architecture protects trillions of web requests per month at the most performance-sensitive global enterprises on the planet

Deploy Time

Deploy Time

Measured in hours/days, not the months of legacy WAFs

Lower TCO


Significantly lower TCO than legacy WAF solutions with no managed services tuning fees

Trusted by Leading Companies

Signal Sciences protects over 2+ trillion production requests per month from over 40,000 applications for industry-leading customers.

Shield Quotes

“Thanks to the smart blocking logic and the easy set up with Signal Sciences, we were able to be up and running within a short time period and without additional maintenance cost.”

Mihály Zágon
Mihály Zágon, Engineering Manager, Prezi

Native Deployment Options For
Datacenter, Cloud, Containers, and Serverless

Signal Sciences provides a hybrid SaaS solution that can be deployed natively in the cloud, in front of legacy applications, or with a single DNS change and no agents.

Signal Sciences Architecture Diagram

Active Protection Legacy WAFs Can’t Match

Four Key Reasons Why Customers Choose Signal Sciences Over Legacy WAF

Signal Sciences Next-Gen WAF Legacy WAF
Deploys in minutes across legacy and modern applications, APIs, containers, and serverless
Web Attack Coverage Beyond the OWASP Top 10: Malicious bots, Account Takeover/Credential Stuffing, API Abuse, DDoS, Advanced Rate Limiting, and more
90% of customers run Signal Sciences in full blocking mode in production
Significantly lower TCO, no managed services fees

The Fastly Next-Gen WAF (powered by Signal Sciences) is a four-time Customers’ Choice for WAAP with a 4.9 out of 5 overall rating

Our customers have spoken: The Fastly Next-Gen WAF is the highest rated Web Application and API Protection (WAAP) vendor. We were named a 2022 Gartner Peer Insights Customers’ Choice for WAAP based on detailed end-user testimonials. In addition, we are the only vendor to be named a Customers’ Choice four consecutive times and have an overall rating of 4.9 out of 5 stars (as of 31 January 2022 based on 267 reviews).

Gartner Peer Insights Customers Choice 2022
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