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Incremental Static Regeneration

A hybrid approach that allows you to update static content after you've built your site, without needing to rebuild the entire site.

AbbreviationISR
Categoryweb

Overview

ISR provides the benefits of Static Site Generation (SSG) with the flexibility of Server-Side Rendering (SSR). It allows you to pre-render pages at build time but also re-generate them in the background as traffic comes in, based on a revalidation timer.

How it Works

  1. Build Time: Pages are generated as static HTML.
  2. Request: User requests a page.
  3. Revalidation: If the page is 'stale' (older than the revalidate time), the server triggers a background regeneration.
  4. Update: The next user to request the page receives the newly generated version.

Benefits

  • Fast Performance: Users still get static files from the cache.
  • Fresh Content: Content stays up-to-date without full rebuilds.
  • Scalability: Handles millions of pages without long build times.