What is client-side rendering (CSR)?
With client-side rendering, HTML is generated in the user’s browser. The server sends a bare-bones HTML file along with JavaScript. Only after that JavaScript loads will the content appear.
CSR is common in single-page applications (SPAs) using frameworks like React, Vue, or Angular.
Advantages of CSR:
- Dynamic experience: Smooth navigation without full reloads.
- Fast interactions after the initial load.
- Front-end control: Developers shape the user experience directly.
Disadvantages of CSR:
- Slower initial load: The page appears empty until scripts run.
- SEO can be tricky: Search engines may struggle with JavaScript.
- Performance depends on the user’s device.
What is server-side rendering (SSR)?
With server-side rendering, the full HTML of a page is generated on the server. The browser receives a complete page right away — no waiting for JavaScript.
SSR is often used for content-heavy websites where SEO is important.
Advantages of SSR:
- Faster first render: Content appears sooner in the browser.
- Better SEO: Crawlers get full HTML immediately.
- Works well on slower devices.
Disadvantages of SSR:
- Slower interaction: JavaScript still needs to load after the initial page.
- More server load, especially at scale.
- Less fluid with highly interactive UIs.
When should you choose CSR or SSR?
Choose SSR if your site depends on SEO and fast initial loads, for example, blogs, news sites, or e-commerce platforms.
CSR works well for app-like interfaces, such as dashboards or tools, where fast interactions matter more than search visibility.
You can also take a hybrid approach with frameworks like Next.js or Nuxt, choosing per page or component whether to render on the client or server.
What does this mean for your project?
Client-side rendering offers more interactivity, but slower first views. Server-side rendering improves performance and SEO, but is less fluid for dynamic apps.
The right choice depends on your content, your users, and your performance goals.
Not sure what fits your stack? We’re happy to help .