= Asynchronous JavaScript and XML. AJAX is a method of communication between a web-server and frontend that does not require web pages to be reloaded completely.


Various web technologies such as HTML, CSS, DOM (Document Object Model), JavaScript and XML are used. Prerequisite is the activation of JavaScript in the webbrowser. After a web server request by the user, only the areas to be updated are transferred to the frontend, enabling a fast reaction to user input.