18. The system of claim 13 , wherein the processors are further configured to: receive metrics indicating whether the prerendered part of the network content was selected when provided; and identifying future prerender candidates based on the metrics.
13. A system for prerendering using a search results page, the system comprising: a memory; and one or more processors coupled to the memory, the one or more processors being configured to: receive at least one search result in association with the search results page in response to a search query, each search result having network content; identify one or more prerendering instructions embedded within the search results page, the prerendering instructions indicating a likelihood that each search result will be accessed; identify particular search results for which the network content should be prerendered based on the likelihood; prerender at least part of the network content in accordance with the prerendering instructions; determine whether a given one of the identified search results is accessed; and when the given search result is accessed, providing the prerendered part of the network content of the given search result.