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hardSystem Design

What is the Full Route Cache in Next.js?

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01

Understand the problem

Server-side cache of rendered static routes.

nextjsfull-route-cachecachingstatic
02

Attempt it yourself

Sketch your approach before reading the solution — that's what interviews test.

Nudge consolestandby

Stuck? Beam a request up — the console returns a conceptual nudge that guides your logic without spoiling the implementation.

03

Study the solution

The Full Route Cache stores the rendered HTML and RSC payload of statically-rendered routes at build time, so they're served instantly without re-rendering. It's invalidated by revalidation or a new deploy; dynamic routes skip it.

Solution ready — 2 min read

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04

Read the code

What lands in the Full Route Cache
// STATIC → rendered output stored in the Full Route Cache
export default async function Page() {
  const posts = await fetch('/api/posts', { next: { revalidate: 3600 } }).then(r => r.json());
  return <List posts={posts} />;
}

// DYNAMIC → NOT in Full Route Cache (rendered per request)
export const dynamic = 'force-dynamic';
05

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