Abstract: A system, methods and server for creating and using manifests to support the rendering of a webpage by a computing device. Multiple computing devices may render a webpage and generate meta data. A server may collect and use the meta data to generate a manifest. The manifest may provide information describing priorities and formats for loading the resources of the webpage. The computing device may transmit information to the server for comparison with the manifest and to determine priorities and formats for retrieving the resources of the webpage. The server may request and send the webpage resources to the computing device based on the manifest information, to which the computing device may render the webpage. The server may access the webpage and generate meta data to create the manifest. The server may alternatively send the manifest information to the computing device.