In 2015, researchers at the University of Michigan realized something critical: security professionals, government agencies, and organizations worldwide lacked a comprehensive, trustworthy way to understand the global Internet landscape. Traditional tools provided fragmented, outdated views of Internet infrastructure, leaving organizations vulnerable to emerging threats and nation-state attacks. So they built Censys - a platform designed to be the authoritative map of the Internet, delivering real-time intelligence through continuous, comprehensive scanning.
What started as an academic research project has evolved into an essential platform trusted by over half of the Fortune 500, numerous government agencies, and customers across more than fourteen countries. Censys maintains the industry's most accurate and up-to-date map of Internet infrastructure by conducting daily ZMap scans across the entire IPv4 address space and synchronizing with public certificate transparency logs. The platform enables security teams to discover devices, monitor attack surfaces, hunt for threats, and respond to emerging risks with unprecedented speed and precision. By democratizing access to Internet-scale data, Censys empowers organizations to shift from reactive to proactive security postures, helping them prevent attacks before they happen. From critical infrastructure protection to threat hunting and exposure management, Censys continues to push the boundaries of what's possible in Internet intelligence, ensuring that security teams have the visibility they need to defend their digital assets in an increasingly complex and hostile Internet environment.