Content Delivery Network technology, which uses a network of servers around the globe, has been around for more than 10 years, with every major mainstream website in the US using it in some form or other.
When content is "offloaded" on a CDN, it gets distributed over this global network and as a result, when your users access your content, they get it from the closest "node," rather than from the location your servers are at, thus making load times dramatically faster.
The adult market has not had access to this technology before, since most of the major players have previously not allowed adult content on their networks; but this recently changed when Level 3 entered into the adult market.
Because of the increase in the amount of CDN bandwidth, pricing is around the same as regular bandwidth pricing, and doesn't require additional hardware.
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