Hey Iurii,

Thanks for the question! And, apologies for the delayed response.

I am not an expert in SSR, but as I understand it SSR requires some modification to the server to render the view before responding to the browser. As a SaaS platform, the server-side code that renders Stencil themes is not accessible to users, so I don’t believe you could implement SSR for a Stencil theme.

But that doesn’t mean you can’t implement SSR with BigCommerce! Consider a headless approach where BigCommerce does not render the front end at all. The Gatsby+BigCommerce+Netlify CMS Starter may give you a good starting point. I haven’t looked into SSR with that stack, but if it’s not already enabled you may be able to implement SSR via Gatsby (see the Gatsby documentation for more information).