The dark web is the encrypted network that exists between Tor servers and their clients, whereas the deep web is simply the content of databases and other web services that for one reason or another cannot be indexed by conventional search engines such as Google.

Let's take an example of expired drugs or banned drugs that can be sold on the dark web, where users can purchase them for multiple reasons. We will explore how to identify information on the dark web using the Tor browser. Some websites such as deepdotweb.com provide a market list of hidden deep web links. These links can only be accessed through the Tor browser. The following screenshot provides an example of drugs that are being sold on the Dream Market: