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This tool collects all information about all devices that are directly connected to the internet with the specified keywords that you enter. This way you get a complete overview.
The types of devices that are indexed can vary enormously: from small desktops, refrigerators to nuclear power plants and everything in between. You can find everything using "your own" specified keywords. Examples can be found in a file that is attached:
The information obtained with this tool can be applied in many areas, a small example:
Network security, keep an eye on all devices in your company or at home that are confronted with internet.
Vulnerabilities. And so much more.
Shodan
Is a search engine that lets the user find specific types of computers (webcams, routers, servers, etc.) connected to the internet using a variety of filters. Some have also described it as a search engine of service banners, which are metadata that the server sends back to the client.
What is the difference between Google or another search engine: The most fundamental difference is that Shodan Eye crawls on the internet, Google on the World Wide Web. However, the devices that support the World Wide Web are only a small part of what is actually connected to the Internet.
eye

Good tool https://txgate.io/images/smilies/smile.gif