A high-speed web server that generates an HTML file upon receipt of an HTTP request is described. The server includes an application executor device and an HTTP server device that receives the HTTP request and sends an HTTP response to the HTTP request. A method for sending an HTTP response in a server that generates an HTML file upon receipt of an HTTP request is also provided. The method includes: executing a script; calculating the number of appearances of the string; storing the string in a storage; executing a script when the script is a command for processing a string; replacing the string with reference information; and sending the string file along with the HTML file when it includes reference information for reference to the string file.