Censys

Censys is an internet-wide scanning and attack surface management platform that provides security teams with a continuously updated, searchable map of all reachable assets on the public internet. Its primary purpose is to help organizations identify, monitor, and reduce external exposure by correlating internet-facing infrastructure with known vulnerabilities, misconfigurations, and emerging threats. By combining its own global scan data with organizational context, Censys enables accurate asset attribution and continuous visibility into an organization’s true external footprint.

Key capabilities include high-frequency internet scanning across protocols and ports, detailed host and certificate metadata, and powerful search and query capabilities through both a web interface and APIs. Censys Attack Surface Management automatically discovers associated domains, IPs, cloud assets, and certificates, and tracks changes over time to detect new or unknown assets. The platform integrates vulnerability intelligence, misconfiguration detection, and risk scoring to prioritize issues based on exploitability and exposure. It also supports alerting, reporting, and integrations with SIEM, SOAR, and ticketing tools to fit into existing security workflows.