Rendering
Incremental Static Regeneration (ISR)
Also: ISR
A hybrid where pages are static-served from cache but regenerated on demand or on a TTL.
Definition
ISR serves cached static HTML and regenerates pages in the background when they hit a TTL or are explicitly invalidated. The first request after expiry triggers a regeneration; subsequent requests hit the fresh cache. Used to combine SSG-grade TTFB with SSR-grade freshness on content sites larger than 10,000 pages where SSG build times become impractical.
See also
More in Rendering
Prerendering
Generating static HTML snapshots of JavaScript-rendered routes for crawlers and (sometimes) users.
Server-Side Rendering (SSR)
Generating HTML on the server for every request, then sending it to the browser.
Static Site Generation (SSG)
Building every page as static HTML at build time and serving from a CDN.
Hydration
The process of attaching JavaScript event listeners to server-rendered HTML in the browser.
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