staleTimes

staleTimes is an experimental feature that enables caching of page segments in the client-side router cache.

You can enable this experimental feature and provide custom revalidation times by setting the experimental staleTimes flag:

/** @type {import('next').NextConfig} */
const nextConfig = {
  experimental: {
    staleTimes: {
      dynamic: 30,
      static: 180,
    },
  },
}

module.exports = nextConfig

The static and dynamic properties correspond with the time period (in seconds) based on different types of link prefetching.

• The dynamic property is used when the page is neither statically generated nor fully prefetched (i.e., with prefetch=).
  • Default: 0 seconds (not cached)
• The static property is used for statically generated pages, or when the prefetch prop on Link is set to true, or when calling router.prefetch.
  • Default: 5 minutes

Good to know:

• Loading boundaries are considered reusable for the static period defined in this configuration.
• This doesn't affect partial rendering, meaning shared layouts won't automatically be refetched on every navigation, only the page segment that changes.
• This doesn't change back/forward caching behavior to prevent layout shift and to prevent losing the browser scroll position.

You can learn more about the Client Router Cache here.

Version History

Version	Changes
v15.0.0	The dynamic staleTime default changed from 30s to 0s
v14.2.0	experimental staleTimes introduced