Technical SEOPublished30.04.2026

SSR (Server-Side Rendering)

Server-side JavaScript rendering before sending to the browser. How SSR solves indexing issues for dynamic sites built with React, Vue, and other frameworks.

In brief

SSR (Server-Side Rendering) is a technique where the server executes JavaScript, assembles ready HTML, and sends it to the client. The browser (and search bot) immediately receives the full content without waiting for script execution.

The client-side rendering problem

React, Vue, or Angular sites by default serve an empty HTML shell, and all content is loaded and rendered on the client. Although Googlebot can execute JS, it happens more slowly and indexing delays may occur.

How SSR works

On a page request, the server runs the application, builds HTML with final content, and serves it to the browser. The search bot sees a fully prepared page without needing JavaScript execution. After loading, the client takes over interactivity (hydration).

SSR frameworks

Popular solutions: Next.js (React), Nuxt.js (Vue), Angular Universal. An isomorphic approach, running the same code on both server and client, is also possible.

SSR is practically mandatory for SEO-sensitive dynamic sites. If you use React or Vue, choose a framework with server-side rendering support.
FAQ

Common questions

Yes, but with delays and not always immediately. SSR provides instant content access and reduces the risk of incomplete indexing.
You can, but it's a stopgap. Better to design the site with native SSR support from the start.
Users see content faster (First Paint), though Time to Interactive may be slightly longer due to hydration. Overall UX is better.
Disable JavaScript in the browser and refresh: content should be visible. Also use the URL Inspection tool in Search Console.
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