The dark web is a part of the internet that is invisible to conventional search engines, such as Google or Bing. We're not talking about individual websites, but a kind of network that can only be accessed with special tools, software, or permissions.
With an anonymizing browser called Tor (The Onion Router) users can access this network and surf around anonymously, with Tor routing information through a series of encrypted layers. The Tor network is one of the largest and most popular darknets and is referred to by most people as the dark web.
Besides several messaging boards and chatrooms, the dark web also includes websites that look similar to traditional websites. They contain sales offers, customer reviews, and ads. But due to the increased anonymity on the dark web, criminals are very fond of using these platforms to buy and sell illegal goods and services. Many identity thieves, cybercriminals, and hacker groups make their money by selling stolen information.