If you go to a
dark web sites to purchase products or services, for instance using eBay in essence, you are making your purchase in the offshore market for currency. That means that if the site's owner is trying to move huge quantities of illicit content like child pornography, they is able to do so anonymously through changing the IP address of his. This means that you won't know where he's located or what he's doing. However, since you're through a website that is secret, you're aiding criminals to move illegal goods and services. That's why you should not spend money to access a website regardless of how attractive the advertisements appear to be.