The foundational technology behind
Shodan gathers information about all devices directly connected to the Internet. If a device is directly hooked up to the Internet then Shodan queries it for various publicly-available information. The types of devices that are indexed can vary tremendously: ranging from small desktops up to nuclear power plants and everything in between.
GreyNoise Intelligence is a
ZoomEye is a Cyberspace Search Engine recording information of devices, websites, services and components etc.
ZoomEye has two powerful detection engines Xmap and Wmap aiming at devices and websites in the cyberspace. It can be used to identify all the services and components through 24/7 continuous detection. Therefore it is easier for researchers to understand the component coverage and the damage scope of vulnerabilities.
FOFA is a cyberspace search engine developed by BAIMAOHUI.
It helps customers find IP assets quickly. It can help users quickly match network assets and speed up the follow-up work process.
For example,
ONYPHE is a search engine for open-source and cyber threat intelligence data collected by crawling various sources available on the Internet or by listening to Internet background noise. ONYPHE does correlate this information with data gathered by performing active Internet scanning for connected devices. It then normalizes information and
Scanning the entire internet space and acquiring data that can be transformed into threat intelligence feeds or security reports.
Hunter lets you find email addresses in seconds and connect with the people that matter for your business.
Wigle consolidates location and information of wireless networks world-wide to a central database, and have user-friendly desktop and web applications that can map, query and update the database via the web.