1. A system, comprising: a client device comprising at least one hardware processor; and program instructions that, when executed by the client device, cause the client device to: access network content predicted to be accessed in a browser application executable on the client device, the network content comprising network page code that references a plurality of resources; access a listing of the plurality of resources, individual ones of the plurality of resources having a prioritization of retrieval that causes the browser application to retrieve the plurality of resources according to the prioritization of retrieval, wherein the prioritization of retrieval of the plurality of resources is determined based at least in part on at least one attribute identified for individual ones of the plurality of resources, wherein a first subset of the plurality of resources have a higher priority for retrieval than a second subset of the plurality of resources; cause the browser application to retrieve at least the first subset of the plurality of resources in accordance with the prioritization of retrieval for storage in local memory of the client device; identify a selection made in the browser application indicating that the network content predicted to be accessed has been requested; and cause the browser application to render the network content in a display of the client device, wherein at least a portion of the network content is accessed from the local memory of the client device.