Network techniques are provided, including a method and system for the accurate and complete playback of web operations. According to an embodiment, there is provided a method for playing back a web operation including one or more of the following inputs: a document object model (DOM) node event, a web request, and a web response. The method comprises: in response to the execution of the web operation, identifying an act input from inputs of the web operation, the act input including a DOM node event or a web response; recording feature information associated with the identified act input, the feature information including a temporal sequence feature of the act inputs and a self constraint feature of the act input, and the feature information being used for playing back the web operation.