PerimeterX Bot Defender

PerimeterX Bot Defender is a behavior-based bot management solution that protects your web and mobile applications and APIs from automated attacks, safeguarding your online revenue, competitive edge and brand reputation.

Protect Your Online Revenue

Protect your business and your users’ data by efficiently blocking malicious bots and stopping account takeover, checkout abuse and competitive scraping.

Preserve Your Brand Reputation

A bot attack can damage your customer experience, reputation and profitability. Bot Defender keeps your digital business and your users’ sensitive data safe.

Reduce Infrastructure Costs

Save on resource consumption by blocking unwanted bot traffic at the edge and optimizing the use and performance of your web infrastructure.

Protect your website, mobile applications and APIs from:

Case Study

With PerimeterX automation through AI fingerprinting we could identify the good traffic from the bad, including very sophisticated attacks — which pays for itself. The fact that it’s been done automatically has been critical to our site reliability and site uptime.

Dan DavisVP of Technology at

PerimeterX Technology Platform Works With Your Existing Infrastructure

Bot Defender can be deployed anywhere with your existing infrastructure — no changes required. PerimeterX Technology Platform can be integrated into any website within minutes. Over forty pre-built integrations support a wide range of content delivery networks (CDNs), load balancers, web servers and application servers. The out-of-band mode of operation is compatible with any cloud-based, appliance-based or serverless infrastructure.

Best-in-class Bot Protection for Your Web Apps, Mobile Apps and APIs

Safeguard your business with industry-leading bot detection accuracy and customizable mitigation for web and mobile applications and APIs. Bot Defender uses a combination of fingerprinting, behavior-based and predictive methods to detect bots and stop hyper-distributed attacks.

Block and Mitigate Bots with Unmatched Precision

The machine-learning-based PerimeterX detector processes numerous data signals collected by the PerimeterX sensor. The detector generates behavioral fingerprints to detect anomalies and continuously updates the sensor with new intelligence. The PerimeterX enforcer is integrated inline with existing infrastructure to efficiently mitigate unwanted bot traffic based on the insights provided by the system and according to your business needs.

Preserve Page Load Performance and Minimize User Friction

Bot Defender preserves your real users' experience without sacrificing page load performance. The asynchronous execution of the sensor, out-of-band detector deployment, inline integration of the enforcer and extremely low false-positive rates ensure quick response times and a positive experience for your users.

Enable Your Team to Investigate, Analyze and Report

Bot Defender provides advanced investigation, analysis and reporting capabilities, enabling customization of parameters and policies according to your business needs.

Stay Secure with Always-available Proactive Experts

Our 24/7/365 proactive security team is always available via multiple channels, including email, phone and Slack. They function as an extension of your team, investigating and resolving security incidents with insights and expertise you can count on.

Case Study

Quite simply, PerimeterX works as advertised. The solution is invaluable in stopping the bots that can scrape or compromise our data.

Robert ConradHead of Engineering at Crunchbase
Read Case Study

How Bot Defender Works

  • Collect

    The sensor collects and sends hundreds of client-side indicators to the detector for precise determination of human versus bot activity. The signals or indicators are used to create the device and browser fingerprints.

  • Detect

    The machine learning (ML) based detector continuously learns the normal range for human interactions, correlates it with customer-defined policies and updates the sensor with new intelligence. The detector maintains a growing repository of known attacks, anonymizes and aggregates across all customers to increase accuracy. The detector frequently updates its training data set and augments its ML features based on internal and external data, which means best-in-class protection.

  • Enforce

    The enforcer is the gatekeeper for threat response policies generated by the detector. It enriches and mitigates bot traffic according to business needs. The enforcer also continuously learns and updates the detector with relevant data. The enforcer can be deployed inline with any existing web architecture.

  • Report

    The cloud-based management portal displays all activity in real time including attacks, blocked requests and rate-limited good bots. Manage all bot traffic, good and bad, with an intuitive admin interface. Investigate and generate custom reports for attacks with advanced reporting, analysis and investigation capabilities of the portal.

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