How to do it...

1. The WhatWeb tool can be launched by using the following command:

whatweb

The following screenshot shows the output of the preceding command:

1. The domain name can be given as a parameter, or multiple domain names can be entered by using the -input-file argument:

whatweb hostname.com

An example of the preceding command can be seen in the following screenshot:

Running the preceding mentioned command will give us the output showing what all technologies is being used by google.com

In the following recipe, we will learn how to use the masscan tool.