censys.io

censys.io

Censys is a service that lets you “Find and analyze every reachable server and device on the Internet.”

Just like people use popular search engines to find relevant content on the Internet, Censys allows users to discover the devices, networks, and infrastructure on the Internet and monitor how it changes over time.

Censys was created in 2015 at the University of Michigan, by the security researchers who developed ZMap, the most widely used tool for Internet-wide scanning. Over the past five years, the team has performed thousands of Internet-wide scans, consisting of trillions of probes, and has played a central role in the discovery or analysis of some of the most significant Internet-scale vulnerabilities: FREAK, Logjam, DROWN, Heartbleed, and the Mirai botnet.

Created by the researchers to developed zmap

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