The overall aim of this study is to determine the performance of selected web-based dynamic middleware systems that are used for designing and implementing dynamic web application systems. This is necessary in a world where more applications are moving to the web, and slow performance of such applications can discourage users, thereby reducing profit, and reduce programmers’ productivity and quality of applications due to slow testing and execution. Java Servlets, Java Server Pages (JSP), Microsoft Active Server Pages (ASP), and Personal Home Page (PHP) were used to perform some operations on the server, like retrieving all records from a database stored on the server. The time taken since the query is initiated from the browser, to the time the query result is displayed on the client browser were measured for each of the four middleware systems as an estimate for their performance. Records were increased in multiples of thousands to estimate scalability along with the performance. PHP proved to be more efficient and more scalable.