ISR (Incremental Static Regeneration)

RU: ISR (Incremental Static Regeneration)

A Next.js rendering strategy that serves a pre-built static page instantly and regenerates it in the background after the revalidate interval expires — implementing the stale-while-revalidate pattern at the page level. On-demand revalidation via revalidateTag or revalidatePath allows triggering a rebuild immediately when underlying data changes, without waiting for the timer.