In a distributed computing system including at least one server and at least one client, the server simulates and executes a client-side script that generates the initial content of a Web page. Specifically, the server simulates a client-side execution environment to run the client-side script that generates the initial content of the Web page. As a result, the initial rendering of the Web page that a server sends over to the client already contains the initial content that is usually generated on the client.