A method performed by a computing system includes, with the computing system, caching, within a cache module of the computing system, a resource request result from a web service, storing, by the computing system, metadata associated with the resource request result, the metadata including a set of entities used to produce the resource request result, wherein the metadata further includes a version of each entity associated with the resource request result, with the computing system, in response to determining that an entity from the set of entities has changed since the resource request result was cached, invalidating the cached resource request result, wherein determining that the entity from the set of entities has changed comprises determining that a version of the entity has changed.