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Next.js Partial Prerendering (PPR) lets a route send a prerendered shell while request-specific or otherwise deferred sections finish rendering. In the current Next.js documentation, this behavior is enabled through opt-in Cache Components with cacheComponents: true. It changes the choice from making a whole route static or dynamic to composing prerendered, cached, and dynamic content within one route—but it does not guarantee every page will be faster.
What is Next.js PPR?
PPR combines content Next.js can render ahead of a request with sections that must wait for request-time information. The prerendered shell can include the page’s shared content and the fallback UI for deferred sections. When a request arrives, those sections render and stream into the response as they become ready.
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The current Next.js Cache Components guide describes the model this way: “Cache Components lets you mix static, cached, and dynamic content in a single route, giving you the speed of static sites with the flexibility of dynamic rendering.” That describes the intended flexibility, not a performance guarantee for every app.
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1. Next.js builds the prerenderable shell
At prerender time, Next.js can include work that does not depend on network resources, request data, or other runtime-only information. Shared page content that qualifies can be ready before a visitor requests the route.
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2. Suspense marks the deferred section
A React <Suspense> boundary identifies work that should wait. Its fallback is included in the shell; the enclosed dynamic component resolves at request time and streams into the response. Put the boundary close to the part that needs runtime work if you want surrounding content to remain in the shell.
3. Independent sections can resolve in parallel
When separate dynamic sections have their own Suspense boundaries, they can render independently and in parallel. They do not necessarily have to wait for one another. If the underlying work itself is sequential, however, boundaries cannot make that dependency disappear.
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4. Cached work and request-time work have different rules
Use use cache for work whose reuse and freshness policy is acceptable. Cache lifetime and on-demand revalidation can be managed with tags, as described in the Cache Components guide. Request APIs such as cookies and headers need request context and cannot run inside the same cache scope. A documented pattern is to read the request-specific value in a dynamic component, then pass it to a separate cached function or component.
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How do you enable PPR in current Next.js?
The current setup uses Cache Components. The configuration reference records that cacheComponents was introduced in Next.js 16.0.0 and unifies earlier flags. Check your installed Next.js version and the current documentation before changing configuration; this rendering setup is version-sensitive.
- Check your Next.js version. Confirm that the project uses a version that supports
cacheComponents; the configuration reference lists Next.js 16.0.0 as its introduction. - Open your Next.js configuration file. Set
cacheComponents: truein the Next configuration object, following the current Cache Components guide. - Identify request-dependent sections. Place Suspense boundaries around components that need request-time or uncached runtime data, and provide fallbacks that make sense in the prerendered shell.
- Choose cache behavior deliberately. Use
use cacheonly where reuse and freshness are appropriate; keep request APIs outside that cache scope. - Run the development and build workflows. With Cache Components, unhandled uncached or runtime data access is surfaced as an error rather than silently treated as static output. Resolve those cases by explicitly caching eligible work or placing request-time work behind an appropriate dynamic boundary.
Older canary instructions may show experimental.ppr: 'incremental' and a route-level experimental_ppr = true. Those belong to the earlier experimental guide and should not be mistaken for the current documented configuration.
When should you use PPR?
PPR is worth considering when a route has substantial useful content that can be prepared ahead of time, alongside a smaller section that needs fresh or personalized request data. The current guide gives static navigation alongside dynamic user preferences as an example. The decision depends on the shape of the route, not simply on whether it uses dynamic data.
- How much of the route can be prerendered? More useful shared content in the shell can make the approach more attractive.
- How fresh or personalized must the data be? Do not cache values in a way that violates freshness or personalization requirements.
- Are dynamic tasks independent? Separate parallel tasks can resolve independently; sequential dependencies still affect when the page is complete.
- Can the fallback work well? It should communicate what is loading and preserve layout as much as practical, rather than leaving a confusing or unstable gap.
- What cache lifetime and invalidation behavior do you need? Choose reuse and revalidation rules that match the data’s actual update pattern.
- Does the deployment platform support the behavior you need? Next.js notes that platform support varies by feature, so consult its platform guidance and the guidance for your target environment.
When is PPR a poor fit?
PPR is less compelling when most of the page depends on sequential runtime work, when there is no useful fallback for the deferred content, or when caching would undermine required freshness or personalization. It may also add needless complexity to a route whose content is already straightforward to render under its existing strategy.
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Does PPR make a Next.js page faster?
It can allow useful shell content to be sent without waiting for every dynamic section, which is the performance rationale behind the model. But the official documentation does not establish a universal uplift or a generalizable comparative benchmark. Actual results depend on the route, data access, cache policy, boundary placement, fallback design, and deployment platform. Measure the behavior of your own route rather than assuming that enabling PPR improves it.
Is Next.js PPR production-ready?
The current documentation presents the opt-in Cache Components approach, enabled with cacheComponents: true, rather than the older canary guide’s experimental PPR setup. That historical warning should not be applied to the current configuration without qualification. Production suitability still depends on using a supported Next.js version, validating the behavior of the application, and checking feature support on the deployment platform.
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