Shodan is a search engine for Internet-connected devices and services, allowing users to discover information about various devices such as servers, routers, webcams, and industrial control systems. Unlike traditional search engines that index websites, Shodan indexes metadata of connected devices by scanning the Internet and gathering information about each device's software, ports, and other configurations. This tool is primarily used by cybersecurity professionals, researchers, and IT administrators to assess security vulnerabilities, conduct network reconnaissance, and monitor their digital assets. Shodan's platform provides advanced search capabilities, data visualizations, and alerts to help users understand and manage the exposure of their networks. The website for Shodan is https://www.shodan.io.