There are various benefits of using the technique of Ajax as it helps to create fast and dynamic web pages. The four main benefits of using Ajax in web applications, those are call-backs, making asynchronous calls and, making the site user-friendly and increasing the speed. Ajax is used to make a callback which is a quick round trip to and from the server to save or retrieve data whereby the need to post the whole page back to the server is not required. Network utilisation is also maximised and faster operations occur by not performing a full postback and sending all form data to the server that is the server does not require to reload the whole page when making any updates on the backend. Users can continue to use the application while the client program request information from the server in the background.
With the ever changing online technologies, many websites have not been able to keep up with these updates and there are just a bunch of websites that use the concept of Ajax.