Picture an iceberg from the perspective of a ship captain. It would certainly look formidable, maybe even vaguely inconceivable. To the average Joe, the regular internet is the iceberg he sees as he steers the ship. What he does not see is the rest of the iceberg beneath the surface that makes up more than 90% of its structure. The submerged portion of the iceberg represents the deep web, which in grossly simplified terms refers to the part of the Web that is not indexed by search engines. The deep web is not to be confused with what is known as the dark web; although the two terms are often used interchangeably.
The dark web is the arguably more complex subset of the deep web that can only be accessed through downloading the dark web browser known as TOR. A savvier user, however, will acquire a separate VPN to conceal their real location beforehand. This special browser allows for nearly-impossible-to-trace (although not entirely impossible) communication and access to content that regular browsers like Google or Bing do not.
Once entry is gained, you are privy to a plethora of drugs and black markets but perhaps most importantly: anonymity—the rarest commodity in the digital age.