What is Incremental static regeneration?
Also called: ISR, Revalidation
The short answer
Incremental static regeneration serves pre-built static pages but rebuilds individual pages in the background on a schedule or on demand, so content stays fresh without full redeploys.
Incremental static regeneration, explained
It combines static speed with dynamic freshness for large catalogs and content sites.
Questions people ask about Incremental static regeneration
What is Incremental static regeneration?
Incremental static regeneration serves pre-built static pages but rebuilds individual pages in the background on a schedule or on demand, so content stays fresh without full redeploys.
Related terms
Static site generation builds every page's HTML ahead of time, at deploy, so pages are served instantly from a CDN without any work per request.
Server-side renderingServer-side rendering builds a page's HTML on the server for each request, so the visitor and search engines receive readable content immediately.
Next.jsNext.js is a React framework for building websites and web apps, adding routing, server rendering, static generation and API routes on top of React.
DOMThe DOM is the browser's live, tree-shaped model of a web page; JavaScript reads and changes the DOM to update what visitors see.
Part of the Web Encyclopedia by Apex Flow Digital. Definitions are general knowledge, kept current, with no invented statistics.