AJAX - Features and limitations

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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!
Jean-François Pillou

CCM is a leading international tech website. Our content is written in collaboration with IT experts, under the direction of Jeff Pillou, founder of CCM.net. CCM reaches more than 50 million unique visitors per month and is available in 11 languages.

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