US Patent 10257307 Reserved cache space in content delivery networks

Systems and methods are described to reserve cache space of points of presence (“POPs”) within a content delivery network (“CDN”). A provider may submit a request to the CDN to reserve cache space on one or more POPs for data objects designated by that provider. Thereafter, the CDN may implement a provider-specific cache on the POPs of the CDN, which is distinct from a shared cache space on the POPs. The provider may further select a custom cache eviction policy for the provider-specific cache, which causes the POPs to manage data objects within the provider-specific cache according to the custom cache eviction policy, independently of a cache eviction policy applied to the shared cache.