Find and analyze every reachable server and device on the Internet.

Understand your public-facing infrastructure


What is Censys?

Censys is a platform that helps information security practitioners discover, monitor, and analyze devices that are accessible from the Internet. We regularly probe every public IP address and popular domain names, curate and enrich the resulting data, and make it intelligible through an interactive search engine and API.
Enterprises use Censys to understand their network attack surfaces. CERTs and security researchers use it to discover new threats and assess their global impact. From the creators of ZMap, the leading Internet-wide scanner, our mission is to make security be driven by data.

Try Censys for free

Take advantage of the best available Internet-wide scan data to better secure your organization.