With a custom configuration we are able to provide you almost 100% cache-HIT ratio. To reach the highest possible cache-HIT ratios you have a cache dedicated exclusively to your files which stay in cache forever . You get complete control over what content stays in cache and for how long, commonly resulting in cache hit ratios of over 99%.Private  CDN also provides greater origin traffic predictability, since your data is stored on dedicated servers optimally sized and maintained for your needs.