1. A method comprising: receiving, at a cache hinting system comprising a browsing assistance computing device, a set of web transaction information, wherein the set of web transaction information is created in response to an observation of an object as part of at least a portion of a first web transaction including an HTTP (hypertext transport protocol) response from a content server to a client computing device, and wherein the HTTP response comprises caching instructions for the object; updating, by the cache hinting system, a set of cache hints associated with the object using the set of web transaction information; receiving, by the cache hinting system, a request for hint information from a second client computing device; and communicating the set of cache hints to the second client computing device.