Disclosed are various embodiments for providing dynamic cascading for network sites. A request for a resource is obtained from a client. The request includes a version identifier. A location of resource data is resolved for generating the resource. Data associated with the request determines a resource group. The resource group specifies a sequenced listing of resource groups. The location is a first one of the sequenced listing of resource groups in which the resource data is present. The resource is generated from the resource data for presentation to the client. The resource data is loaded from a data cache when the version identifier is less than or equal to a version identifier associated with the resource data in the data cache. The resource data is loaded from a data store when the version identifier is greater than the version identifier associated with the resource data in the data cache.