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The Authority for Internet Intelligence and Insights

Censys maintains the authoritative map of global Internet infrastructure used by organizations worldwide to uncover risks faster, respond more effectively, and prevent breaches before they happen.

One Source of Truth

Intelligence and Insights

Attack Surface Management, Threat Hunting, and Proactive Cyber Defense

With the Industry's best Internet intelligence at your fingertips, it is easier than ever to accomplish your security objectives at scale — whether it be discovering your digital footprint, identifying unknown exposures, or tracking attacker infrastructure.

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Gain the attacker perspective

Remediate your most critical security vulnerabilities before attackers can strike. Censys continuously identifies and monitors all internet-facing assets tied to your organization, including those you didn’t know about. Personalized risks ensure your team prioritizes the exposures most likely to be exploited. 

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Proactively understand adversary infrastructure

Stay ahead of an evolving threat landscape with access to the rich, contextualized intelligence on the infrastructure that threat actors are using to mount attacks. Use our highly-structured Internet data to detect compromises, uncover attacker-controlled infrastructure, and identify new attack methods. 

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Defend industrial control systems critical to national security

Understand and remediate the Internet exposure of the control systems and power national critical infrastructure. Gain real-time visibility into your, ICS environments, mitigate threats of disruption, and protect operational resilience.

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Know the risk before you grow

Gain complete visibility into the cybersecurity posture of subsidiaries  and potential acquisitions. Quickly uncover hidden cyber risks with real-time insights, empowering your security team to make informed decisions about infrastructure they might not otherwise have visibility into.

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Take control of your cloud exposure

Eliminate blind spots by gaining complete visibility into your cloud footprint. Equip security teams to identify risks, manage shadow IT, and proactively defend against threats.

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Understand the internet with unprecedented clarity

Censys provides security analysts with the Internet visibility and context they need to quickly uncover and respond to incidents, to identify anomalous events, and to prioritize remediation efforts. Access a comprehensive, continuously updated view of global Internet infrastructure to get a clear picture of your own Internet presence, your suppliers, and your adversaries. 

Why Organizations Around the World Choose Censys

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"Censys is like Shodan on steroids. With Censys, we could see details about the attacker’s infrastructure, such as web servers, certificates, and other equipment, allowing us to expand our view beyond just the targeted site. "
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Pedro Zeferino

Head of Cybersecurity, NOS

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"Censys plays a critical role in our technology stack for understanding risk and automating insurance processes. We choose Censys over other tools because of its reliability."
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Ayelet Kutner

CTO, At-Bay

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"When managing any attack surface, finding a new risk means you must also find the person responsible for remediating. With Censys ASM Workspaces, it is simple and easy to segment our attack surface so that it is clear who needs to take action."
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Wolfgang Bauer

IT Security Manager, Swiss Life

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"The powerful search functionality and extensive historical data made Censys great to use for attribution. Censys is used in almost every investigation we do."
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Bill Marczak

Research Fellow, Citizen Lab

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"The quality of metadata and information is brilliant and essential in cyber operations. We love the search capabilities, flexibility, and pivoting to find other linked infrastructure. IP and service information and metadata is unparalleled."
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IT Security and Risk Management

What’s New

Research and Resources to Guide Your Strategy

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blog

Press Release: Censys Enhances Critical Infrastructure Protection with Unmatched Internet Visibility

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reports

The 2025 State of the Internet Report

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ebooks

Attack Surface Management 101: Your Guide to Total Visibility in Healthcare

Protect What You Own With Unmatched Intelligence. Get Started Today.