Patent ID: 8752134

Claim:
A computer-implemented method, performed by a substitute server system including one or more servers and memory storing one or more programs for execution by the one or more servers, the method comprising: at the substitute server system: receiving an access request from a terminal device to a network server distinct from the substitute server system; extracting a web page address from the access request and comparing the web page address with cached records stored in the substitute server system; determining whether the access request matches a cached record stored in the substitute server system; in accordance with a determination that the access request matches a cached record stored at the substitute server system, returning the matched cached record to the terminal device; in accordance with a determination that the access request does not match a cached record stored at the substitute server system, processing the access request for a security check, further including detecting whether the access request includes an illegal access request; in accordance with the security check, forwarding the processed access request to the network server; receiving a response satisfying the access request, the response including information from the web page, from the network server; optimizing the response from the network server; and forwarding the optimized response to the terminal device.