A method and apparatus for providing data to a network terminal. A network node receives information relating to a first instance of a client running at the network terminal. Using the information, the network node concurrently runs a second instance of the client that emulates the first instance. Using the second instance, the network node generates a request for data required by the first instance. Before receiving a request for data generated by the first instance, the network node sends the request for data required by the first instance to a remote server and receives a response that includes the required data. The required data is then sent to the network terminal. The advantage of this is that the request for data required is generated before the network node receives a request from the network terminal. This allows the request to be handled more quickly.