Sites with AJAX and Search Engines?

Question

JavaScript

And again a question about Ajax, tell me please :)

There is a site that uses Ajax very actively. In fact, the PS sees only the Hat and the Cellar, everything else is generated by Ajax.

If, before submitting the page, check whether the visitor has JS working in the browser (as I understand it, if the PS enters the site, the script will show that JS is not available for him).
And for ordinary visitors, give the Ajax version, and for browsers with disabled JS (and PS, including, respectively), give a purely HTML version of the same page (well, maybe just lighter, without graphics and with a less beautiful layout, but with the same content ). What is the chance of getting banned from PS for cloaking or something like that?
Plato didn't have a clear answer to this.

Answer 1

You are doing the site wrong, if you have such questions at all. Any Ajax (and indeed any javascript) is a simplification for users for an already working site. All your custom controls should be formed from working inputs, forms with ajax validation should be validated without it in the same way, additional content should be loaded when you click on a link that already leads to this content.

Answer 2

It is unlikely that there will be sanctions - after all, no one bans anyone for mobile versions of sites.

Answer 3

normal search engines can work with Ajax navigation: code.google.com/web/ajaxcrawling/docs/getting-started.html