Can an AJAX framework (using HTML5 + pushstate) on your site impact your ranking?

[Netsociety]

Hello everybody,

I am currently investigating a website which is rendered by an AJAX Framework (Angularjs) using the HTML5 +API history - Pushstate methods.
Recently Google announced that they are able to execute Javascript and can therefore see the content and links to discover all pages in the structure.

However it seems that it doesn't run the Javascript at ALL times. (after some internal testing)

So technically it is possible it arrives on a page  without seeing any content and links, while another time he can arrive, run Javascript and read/discover the content and links generated by AJAX.
The fact that Google can't always interpret or read the website correctly can therefore have negative SEO impact? (not the indexation process but ranking)

We are aware that is better to create a snapshot of the page but in the announcement of Google they state that the method that is currently used, should be sufficient.

Does anybody have any experience with this AND what is the impact on the ranking process?

Thanks!

[Mobilio]

Long story short - YES. Any JS framework can impact your ranking.

I share again here link on Distilled how they using custom service to providing pure HTML version of site to bots only:
https://www.distilled.net/resources/prerender-and-you-a-case-study-in-ajax-crawlability/
And seems that experiment works very well on them.