Does ajax support the ability to load elements in order to display them later?

Question

Design

Does ajax support the ability to load elements in order to display them later?
Can you download what you don't need?
I ask all this taking into account the fact that the page itself should not be updated in the browser, but that the content changes.
Is there a problem of indexing such pages by search engines? Otherwise, I don’t understand why news sites still keep news on different pages, if you can set up a transition to the list of news and switching to other news using ajax. Or is it just because it will show fewer banners and the site's view statistics will look more meager?

Answer 1

Ajax is just a technology for asynchronous requests. They can load elements at any time, displaying them or saving data to some variables for further display or processing. You can unload the unnecessary by simply removing this unnecessary from the DOM tree. For both loading and unloading, I advise you to use the jQuery library , as the simplest.
When using background loading of page elements through Ajax, search engines index only the code of the main page, so you cannot rely on Ajax alone. Usually they do it like this: <a href="/page_1" onclick="load('ajax_page_1'); return false"> In this way, with a simple click on the link, load('ajax_page_1') will be called, but if javascript is turned off or they want to open the link in new tab, it will navigate to /page_1. And of course, this method eliminates problems with search engines.

Answer 2

ability to load items

Yes

Can you download what you don't need?

ajax? if you remove elements from the dom - jquery yes.

Is there a problem of indexing such pages by search engines?

Yes

why news sites still keep news on different pages

and you can also keep them on different ones for search engines, and on the pages themselves, intercept clicks and load them with Ajax

banners will be shown less

you can also upload new banners with new content ...

Answer 3

ajax is the same javascript that search engines don't like.
Therefore, if you make the site pro-Ajax, you need to take care that those who have javascript disabled have the same functionality (those individual pages, links to which, if the user has javascript enabled, are replaced with a call to the same ajaxin).