Useful for a range of defensive and offensive purposes, internet asset search platforms enable a range of activities from:

• Research & Trend Analysis
• Vulnerability Hunting
• Attack Surface Mapping
• OSINT

Each has its own interfaces, features, dataset sand styles.

I’ve put together a list of the most popular, there may be more that I haven’t listed.

Western Internet Asset Search Tools

https://www.shodan.io

https://censys.io/

https://www.binaryedge.io/

Eastern Internet Asset Search Tools

https://www.zoomeye.org/

https://fofa.so

https://netlas.io

Get Hunting

Just like google crawls webpages, these search ports, services, fingerprints, and metadata. They enable you to understand attack surfaces, technology deployments and gain a range of insights into the world of the internet without sending active packets. You can also augment tools with data from these, I often use Maltego and Shodan to perform recon, analysis and conduct research using visualisation to support discovery and analysis.