GreyNoise analyzes untargeted internet scanning and attack activity reaching servers connected directly to the internet.
Shodan
Shodan indexes internet-connected devices and services, with search tools for examining exposed infrastructure.
About Shodan
Shodan indexes internet-connected devices and services for search and examination. It lists items beyond websites, such as power plants, mobile phones, refrigerators, and Minecraft servers, and shows product usage and changes over time.
It includes Shodan Monitor to track devices in a network range that are directly accessible from the internet, with notifications for unexpected findings. It also provides an API for IP lookups, searching, and data streaming, and extensions for Chrome and Firefox.
Key features
- Search index of internet-connected devices and services
- Monitor network range for directly accessible devices
- Notifications for unexpected exposed services
- API for IP lookups, searching, and data streaming
- API checks for VPN use and compromised websites
- Chrome and Firefox extensions for website security view
Best for: Network operators and security researchers who need to find and track internet-exposed devices and services.
Good for
- Finds device types beyond websites
- Includes monitoring with notifications for exposed services
- Provides API for IP lookups, search, and data streaming
Shodan at a glance
- Website
- shodan.io
- Category
- Privacy & Security › Security Research
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
Shodan alternatives
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