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Tech / Software
Tech / SoftwareDepth 1 · Intermediate

Server-Side Rendering (SSR)

The server builds the full page before sending it to the browser

SSR generates HTML on the server and sends a fully rendered page to the client. This improves initial load performance and SEO compared to client-side rendering, where JavaScript builds the page in the browser.

Mental modelPre-render before delivery

Where you'll encounter this

  • Frameworks like Next.js, Nuxt, SvelteKit
  • SEO optimization
  • Performance tuning
  • Hybrid rendering strategies

What breaks when this is misunderstood

  • Slow server response times
  • Mismatch between server and client rendering (hydration errors)
  • Overloading backend resources
  • Caching issues

Signals this concept is in play

  • HTML returned fully populated
  • Faster first contentful paint
  • Hydration warnings in console
  • Server logs for page rendering

Learning Ladder

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Clarity level30%

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