This kind of traffic optimization happens more frequently than you might think. Particularly among CDNs. CDNs don't optimize solely for performance. They optim

This kind of traffic optimization happens more frequently than you might think. Particularly among CDNs. CDNs don't optimize solely for performance. They optimize for a balance of performance and cost. That means saturating a given 95/5 link for 5% of the month, and then mapping the traffic away right before it starts to get expensive.