Performance Optimization

Streaming SSR: Delivering Faster Page Loads with Progressive Rendering

Streaming Server-Side Rendering (SSR) enables pages to load faster by sending portions of HTML to the client as they are rendered. This article explains how streaming SSR works, its advantages, and how it can significantly improve user experience by reducing initial load times.

Summary

This article explores the concept of streaming SSR, detailing how it allows for progressive rendering of web pages. Learn about its benefits in reducing time-to-first-byte and improving overall performance, along with practical implementation strategies.

Technologies

Streaming SSRA rendering technique where HTML is streamed to the client as it is generated, improving load times and user experience.

Key points

01
Concept and benefits of streaming SSR
02
Comparison with traditional SSR
03
Implementation strategies and best practices
04
Impact on performance and SEO
05
Case studies of streaming SSR in action

Example 01

Streaming SSR Example

javascript

// Example pseudo-code for streaming SSR
function streamResponse(req, res) {
  res.write('<html><body>');
  // Stream content progressively
  res.write('<h1>Loading content...</h1>');
  // Finalize the response
  res.end('</body></html>');
}

References

Next.js Streaming SSR

Edge Runtime
Web Vitals
Performance

All research