The reason that led me to carry out this project is to analyze the current use of the JavaScript programming language, which was born 20 years ago to meet certain needs and in a programming environment, which nowadays highly differs from the use that is do ne out of JavaScript . In order to demonstrate that the use of JavaScript on the server can lead to performance losses and incorrect habits, I will make a comparison between JavaScript and another more appropriate or specialized language such as Rust for t he server scope. After performing a conceptual introduction of each language, I will perform performance tests in different fields such as requests per second, robustness, calculation speed, latency and flow. To all this I have been able to prove that it is not good to stretch too much the possibilities of a programming language, however practical this may be, since JavaScript turns out to have a much lower performance than Rust. This makes in some areas, such as the web server, where in order to solve performance issues hardware will be increased when you can simply solve it by making a correct use of the code in the right place