The dark web is a part of the internet that isn’t indexed by search engines. Basically if you can find a site on google, you are not on the dark web. So, if google doesn’t index it then how do you find it?
Navigating the dark web requires the a browser called Tor. Tor routes your data through many different proxies, hiding your IP. However, because it is doing all this with every request is slows down your experience on the web greatly.
What is the difference between the Dark Web and the Deep Web?
Deep web refers to anything on the internet that is not indexed by and, therefore, accessible via a search engine like Google. Deep web content includes anything behind a paywall or requires sign-in credentials. It also includes any content that its owners have blocked web crawlers from indexing. CSO Online
The dark web is where bad guys buy and sell your stolen identity information for example. Check out the linked CSO Online article above for more great information.