English: Edited to move the dark web out of Internet and almost fully into the deep web (the circle used the be further down) and added info on the overlap of Dark Web & Surface Web (sites like Facebook onion address that are on both with same content)

"Figure 1 compares the dark web to other parts of the Internet, such as the surface web and deep web. Many users access the dark web for legitimate purposes, including the discussion of socially sensitive matters or to counter censorship in oppressive areas of the world. However, the dark web is also used to engage in illegal activities. Given the difficulty of enforcing the law on this global and largely anonymous platform, investigating illicit dark web activity is both a priority and challenge for the Federal Bureau of Investigation (FBI) and the Department of Justice (Department)."

"An Anatomy of the Internet"

"Source: Based on a figure from the Argonne National Laboratory, a Department of Energy Facility."