Web developers have come to realize the merit of using Ajax in generating websites as it is very efficient and lends a dimension of greater functionality and speed. Each time a user modifies or performs an action, the web page remains unaffected. This is achieved with the inclusion of the XMLHttpRequest object.
One of the main advantages of Ajax that web developers and website designers enjoy is its ability to save up on bandwidth usage and reduce server load by a considerable level. Ajax developed pages exchange small amounts of data with the server, making this possible.