Darkbeam provides a unified solution to protect against security, brand and compliance risks across your digital infrastructure. Founded by former military and intelligence professionals, We’re here to help you simplify complex threats, and will work with you to augment your current approach to risk.

Robtex uses various sources to gather public information about IP numbers, domain names, host names, Autonomous systems, routes etc. It then indexes the data in a big database and provide free access to the data.

Shodan is a search engine for Internet-connected devices. It is a database of billions of publicly available IP addresses, and it’s used by security experts to analyze network security.If a device is directly hooked up to the Internet then Shodan queries it for various publicly-available information. The types of devices that are indexed can vary tremendously: ranging from small desktops up to nuclear power plants and everything in between.

Virus Total
is a non-commercial security community service that inspects items with over 70 antivirus scanners and URL/domain blacklisting services, in addition to a myriad of tools to extract signals from the studied content. Any user can select a file from their computer using their browser and send it to VirusTotal.