Runtime Application Self Protection

Signal Sciences Runtime Application Self Protection (RASP) provides flexible, scalable, and accurate protection for modern web apps by embedding directly into the source code. No heavyweight modifications of your applications required.

How it works

RASP is the best choice if you prefer security controls at the application layer. Installing into the application, our lightweight RASP module uses a patented, fail-open architecture to communicate with our local agent. This allows for a fast, reliable, and secure asynchronous connection to our proprietary cloud decision engine, ensuring that your customer traffic remains stable and secure—no matter what.

Easy to Install

Add our lightweight plugin to your application, install the agent, and your sites are covered in minutes. We don’t require black-box library inclusions or JVM replacements that are hard to install, troubleshoot, and scale.

Full Application Coverage

With the broadest language support of any vendor in the RASP market today, we can detect and block attacks against your apps, services, and APIs no matter what language you use. View all languages

It's Fast

Our RASP is lightweight and we guarantee performance SLAs so your site runs the way you built it to run: fast.


Companies like Etsy and Chef trust Signal Sciences.  Learn why

Reliable and Accurate Decisions

95% of our customers are in full blocking mode for their production sites across the broadest set of attack types. We analyze over 100 billion requests per week and continually improve our detection and decision engine so you don’t see false positives.

Unparalleled Scalability

Roll out and scale faster using our RASP! Other approaches are heavyweight and lead to time-consuming development bottlenecks which limit your deployment.

Actionable Intelligence

Signal Sciences RASP collects and shares detailed alerts with the DevOps tools your teams already use. With the most robust API in the industry, we give your SOC teams an advantage over attackers. We also provide one-click virtual patching capabilities to thwart zero-day attacks from known CVEs.

Deploy with Confidence

Modern Attack Protection
  • OWASP Top 10
  • Application DoS
  • Brute force attacks
  • Sensitive business logic attacks
  • Request rate limiting
  • Account takeover attacks
  • Bad bots
  • Virtual patching
Modern Web Server Support
  • NGINX
  • NGINX Plus
  • Apache
  • IIS
Language Support
  • .NET
  • Java
  • NodeJS
  • Go
  • Scala
  • PHP
  • C#
  • Python
  • Ruby