Censys is described as 'Search engine that allows computer scientists to ask questions about the devices and networks that compose the internet' and is a vulnerability scanner in the network & admin category. There are more than 25 alternatives to Censys, not only websites but also apps for a variety of platforms, including Linux, Windows, Mac and Self-Hosted apps. The best Censys alternative is Metasploit. It's not free, so if you're looking for a free alternative, you could try Metasploit or Shodan. Other great sites and apps similar to Censys are Social-Engineer Toolkit, Whatoblock, ZoomEye and IVRE.
Metasploit Community Edition simplifies network discovery and vulnerability verification for specific exploits, increasing the effectiveness of vulnerability scanners such as Nexpose - for free. This helps prioritize remediation and eliminate false positives, providing true...
Shodan is a search engine that lets you find specific computers (routers, servers, etc.) using a variety of filters. Some have also described it as a public port scan directory or a search engine of banners.
Criminal IP protects IT assets and businesses by analyzing all years of cyber threats and prediciting exploits. Criminal IP provides real-time intelligence to enhance cybersecurity competencies in all aspects.
The Social-Engineer Toolkit is an open source penetration testing framework designed for social engineering. SET has a number of custom attack vectors that allow you to make a believable attack quickly.
Whatoblock is a real-time cybersecurity threat intelligence platform with global botnet tracking, scanner detection, interactive threat search, and a live threat map.
Exploit Pack is an open source project security that will help you adapt exploit codes on-the-fly.
Sn1per Professional is an all-in-one offensive security platform that provides a comprehensive view of your internal and external attack surface and offers an asset risk scoring system to prioritize, reduce, and manage risk.
Immunity's CANVAS makes available hundreds of exploits, an automated exploitation system, and a comprehensive, reliable exploit development framework to penetration testers and security professionals worldwide.
Core Impact Pro is the most comprehensive software solution assessing and testing security vulnerabilities throughout your organization. Core Impact Pro tests across a broad spectrum of risk areas including:
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Not too fond of Metasploit. Bad customer response.