ONYPHE is described as 'Search engine for open-source and cyber threat intelligence data collected by crawling various sources available on the Internet or by listening to Internet background noise' and is a penetration testing tool in the security & privacy category. There are five alternatives to ONYPHE, not only websites but also apps for Google Chrome, SaaS and Mozilla Firefox. The best ONYPHE alternative is Shodan, which is free. Other great sites and apps similar to ONYPHE are Censys, FOFA, ScanSearch and RedGem.
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.
Censys is a search engine that allows computer scientists to ask questions about the devices and networks that compose the internet.
On-demand internet scanner. Trigger a live port and service scan of any IP, CIDR or country via REST API and get fresh results in seconds.
Discover, monitor, and protect your organization's entire digital footprint with real-time alerts for security changes.
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