Some embodiments modify caching server operation to evict cached content based on a deterministic and multifactor modeling of the cached content. The modeling produces eviction scores for the cached items. The eviction scores are derived from two or more factors of age, size, cost, and content type. The eviction scores determine what content is to be evicted based on the two or more factors included in the eviction score derivation. The eviction scores modify caching server eviction operation for specific traffic or content patterns. The eviction scores further modify caching server eviction operation for granular control over an item's lifetime on cache.