There are three kinds of the internet world. The surface web, deep web and dark web. The internet we surf (Google, Facebook etc.) is called surface web. 96% of net world is covered by deep web and dark web. But, we can't browse the dark web easily. It need Tor Browser and VPNs to browse the dark web. For a better and safer, dark web links' browsing, these are necessary for every surfer. There are both good things and the bad things in the dark web. So, what you will get from that dark world, is depends on your choice.