This online free service discovers web sites that related to a given web site or an IP address
It is a service designed to discover the host names related to a given web site or an IP address, generally speaking, all application level host names related to a server (example: DNS names, HTTP virtual hosts).
In the real world an IP address can be registered in a DNS server with multiple host names, because it can have some aliases or it is hosting a bunch of websites.
The purpose of the service is to discover all this registered DNS names, also called host names or virtual hosts, to provide a better knowledge of the target and an extended attack surface to the user.
Examples:
- w-e-b.site
- prostolinux.ru
- 5.45.80.175