How to Use the Dark Web to Do Business Using the dark web to do business isn't always a good idea. While it may seem like a convenient way to communicate with friends and relatives, it can also be used by criminals to sell illicit goods and services. To use the dark web, you need to download a special browser called Tor, which helps keep you anonymous on the web. You can also use a virtual private network (VPN) to reroute traffic through a server in a different country