AJAX - Features and limitations

December 2016

The advantages of using AJAX

Websites using AJAX enjoy the following benefits:
  • A reactive interface: as AJAX can locally modify the web page.
  • Speed of execution: as only the data that must be modified are exchanged using the HTTP protocol.
  • Improved ergonomics: AJAX allows for example to perform real-time controls in the forms, integration with the HTTP server are done in the background.

Limitations of AJAX

In return, the AJAX model has the following limitations:
  • Only recent browsers that support the XMLHttpRequest Javascript object are able to correctly interpret an AJAX page.
  • Search engines may not be able to index all content published with AJAX.

Thus, it is essential to provide an alternative to AJAX in your web pages!

Related :

This document entitled « AJAX - Features and limitations » from CCM (ccm.net) is made available under the Creative Commons license. You can copy, modify copies of this page, under the conditions stipulated by the license, as this note appears clearly.