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The Censys Internet Map

The most accurate, comprehensive, and real-time view of the internet, empowering security teams to uncover risks, identify threats, and strengthen defenses. Trust Censys to deliver the most complete internet infrastructure intelligence and proactively stay ahead of evolving cyber threats.
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The Best Data Is Built, Not Borrowed

The internet’s infrastructure is dynamic and ever-changing, requiring continuous scanning for true visibility. While others depend on third-party or open-source data, Censys’ purpose-built scanning infrastructure provides complete control over the process. Our technology continually redefines how the global internet is mapped and understood.

Our Scanning

We are dedicated to providing the most reliable internet scan results for businesses, governments, and researchers. Constantly refining our infrastructure and techniques, Censys ensures trustworthy and comprehensive data.

Coverage

Traditional scanning often misses non-standard services, leaving blind spots. With over 60% of internet services on non-standard ports, Censys' Predictive Scanning intelligently targets these areas using real-world patterns. This approach ensures unmatched visibility, revealing hidden infrastructure like IoT devices, attacker backdoors, and other elusive services.

Accuracy

Reliable data is essential for effective security. Censys actively refreshes its dataset of approximately 4 billion services daily, achieving an average refresh rate of under 16 hours. This continuous process ensures that the data remains accurate and up-to-date, minimizing false positives and preventing outdated information from impacting security decisions.

Time-to-Discovery

Quickly identifying newly exposed assets is crucial for risk reduction. Censys scans the entire public IPv4 space continuously, detecting up to 10,000 infrastructure changes per minute. With a median discovery time of just 9 hours—six times faster than the nearest competitor—security teams gain a critical advantage in responding to emerging threats.

The Censys Internet Map by the Numbers

Censys customers trust us to protect their attack surfaces from adversaries and elevate their threat intelligence. With our continuous scanning and global coverage, Censys provides mission-critical insights through:

1T
Over 1 trillion scan events recorded globally
10K
10,000 infrastructure changes detected every minute
65K+
Predictively scans all 65,535 available ports
4B
4 billion internet services refreshed daily
2.75B
Tracks over 2.75 billion hosts (IPv4, IPv6, Virtual)
200-500
Discovers 200-500 X.509 certificates per second
Did You Know?
Reduces by 70%

Censys’ data accuracy reduces the number of false positives by 70%.
- Forrester TEI Report, 2023

The Authority on Internet Infrastructure

The Censys Internet Map is designed for precision and usability, offering billions of current and historical records on hosts, services, web properties, and X.509 certificates. Each record is enriched with contextual information such as IP WHOIS, CPEs, CVEs, TLS versions and ciphers, response bodies and headers, and advanced fingerprints like JARM and JA3/4S. This meticulously indexed, searchable, and structured data helps you quickly uncover critical connections and stay on top of internet events that impact your organization.

World's Largest X.509 Repository

Explore the world’s largest X.509 repository, built over a decade. Censys gathers certificate data from transparency logs and TLS/SSL handshakes, supporting both current and historical analysis for certificates, hosts, and web properties.

Protocol Coverage & Detection

Censys uses over 100 deep protocol scanners and Automatic Protocol Detection to identify protocols, regardless of the port. By analyzing application-layer data, we uncover risky services on non-standard ports that others might miss.

Web Application Scanning

Gain visibility into web properties through deep scans of platforms like WordPress, Cobalt Strike, Kubernetes, Prometheus, and Elastic Search. Censys provides detailed context for internet-exposed HTTP services, identifying what others overlook.

Structured & Labeled Data

With over 10,000 parsed fields, Censys maintains contextual records of internet assets. Services are tagged with software details, vulnerabilities, configuration data, and labels like ‘bulletproof hosting’ or ‘login interface,’ enabling quick identification.

Accumulated History

Censys maintains billions of historical records for IPv4 and IPv6. Daily updates enrich the dataset, accessible via point-in-time lookups, event feeds for alerts, or specialized APIs, providing valuable context on the historical evolution of the internet.

Flexible Usage & Consumption Methods

Access the Censys Internet Map via Censys Search (UI or API), Attack Surface Management (UI or API), or Bulk Data Downloads to integrate our insights into your workflows with flexibility.

Ready to test our data?

Try our data for free and experience the Censys difference. Prefer to speak with a Censys specialist? We’re here to help.

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Attack Surface Management Solutions
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