A cooperative rendering cache browser (CRC-Browser) for a mobile device may cooperatively manage cached content with a proxy server to reduce redundant transmissions of processed Web data. Additionally, the CRC-Browser may provide stateful, thin-client Web browsing to maintain synchronized information about rendering objects of a Web page. Further, the CRC-Browser may cache only stable and/or visible document object model (DOM) elements and communicate a list of IDs of the cached elements to the proxy. Such stateful thin-client browsers may be useful for reducing battery drain, poor responsiveness, and high wireless network costs of mobile Web browsing.