Impact of modals on SEO?

Question

Search Engine Optimization

All with the upcoming!
There are a lot of modal windows on my site for viewing content, the visitor enters, clicks on "our works" they are loaded by the modal window, but Yandex Metrica does not see that he is viewing additional pages
By analogy, you can imagine the same Vkontakte, you click on the post, there even more text appears, you can say a separate page
I want to know your opinion on this matter, maybe someone has already implemented it, how are the results and how to make Yandex "see" these transitions modal windows
Now it's just that the viewing depth shows 2-3, but in fact it there are 5-10, I think it still has a place to be for issuance, behavioral after all
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ps I output via ajax

Answer 1

in the text window from AJAX or from where?

Answer 2

This is a shitty option, I recommend redoing it. Yandex really dislikes hidden content on web pages, namely modals, sliders and tabs imply content hidden by default, and the worst thing is when there is more hidden content on the page than open content. In confirmation of my words:
Official source .