Search engines for opensource intelligence (OSINT)

Powerful search engines for osint

In this small contribution we introduce you to some search engines that can be very useful in the course of opensource intelligence. The topic “google hacking” is deliberately left out, because it is worth a separate article. We concentrate here on so-called asset search engines. In the following a list of search engines. Have fun trying them out.

Always remember, who has the information, has the power and find a way to achieve their goal. If you would like to book a professional workshop on information and opensource intelligence, please contact us! So, now really have fun trying out the search engines!

Search engines


Shodan is the world’s first search engine for Internet-connected devices. Discover how Internet intelligence can help you make better decisions.


Your cloud is bigger, wider, and more vast than you know; your internet assets innumerable. Censys is the proven leader in Attack Surface Management by relentlessly searching and proactively monitoring your digital footprint far more broadly and deeply than ever thought possible.

Hunter lets you find professional email addresses in seconds and connect with the people that matter for your business.

If you don’t know all your internet-facing assets, which ones are vulnerable, FullHunt is here for you.


Cyber Defense Search Engine


Search for SSL certificates


Security Intelligence feeds

Public www

Find any alphanumeric snippet, signature or keyword in the web pages HTML, JS and CSS code.


Thread Intelligence search


Search for domain, email, cidr, ip, bitcoin address and more


People search engine


Social Media, Photos, Police Records, Background Checks, Civil Judgments, Contact Information (USA only)


Search for CV’s / resumes


RefSeek is a web search engine for students and researchers that aims to make academic information easily accessible to everyone. RefSeek searches more than five billion documents, including web pages, books, encyclopedias, journals, and newspapers.

worldcat is a great resource for locating unique, trustworthy materials that you often can’t find anywhere except in a library

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