What are the disadvantages of AJAX?


Some of the disadvantage of using AJAX are listed below:

  1. Websites where SEO matters:- You should not use AJAX on websites/blogs to update reading content because most web crawlers do not execute JavaScript code and it has negative impact on SEO. Due to this search engine will not be able to index such pages.
  2. The back and refresh button are rendered useless :- If you are using AJAX to update page, in such case back button should be handled properly to render previous page otherwise back button will work based on history.
  3. Dependent on Javascript:- If Javascript is disabled, in such case AJAX won't work.
  4. Bookmark issue:- Proper coding/implementation can avoid bookmarking issue with AJAX, if you update the url also. But it is harder to manage.

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