The Deep Web (also known as the Undernet, invisible Web and hidden Web, among other monikers) consists of data that you won’t locate with a simple Google search. The deep web, invisible web, or hidden web are parts of the World Wide Web whose contents are not indexed by standard web search engines. The opposite term to the deep web is the “surface web”, which is accessible to anyone/everyone using the Internet. The so-called surface Web, which all of us use routinely, consists of data that search engines can find and then offer up in response to your queries. But in the same way that only the tip of an iceberg is visible to observers, a traditional search engine sees only a small amount of the information that’s available — a measly 0.03 percent.
Dark Web: The Dark Web allows users to remain anonymous through encryption. This is attractive to anyone involved in illegal activity, such as child pornography, sex trafficking, illicit drugs, or counterfeit goods. But it also may be useful for anyone living in an authoritarian state wishing to communicate with the outside world, as well as providing a safe space for whistle-blower’s. So while it’s not illegal to visit the Dark Web, it provides access to illegal activities.