Implementing Incremental Static Regeneration (ISR) in Jamstack Sites
Learn how to use Incremental Static Regeneration (ISR) to update individual Jamstack pages without a full rebuild, balancing static performance with fresh content.
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Learn how to use Incremental Static Regeneration (ISR) to update individual Jamstack pages without a full rebuild, balancing static performance with fresh content.
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Jamstack architectures traditionally shift data fetching to build time, but large content sets can make full static rebuilds a deployment bottleneck. Incremental Static Regeneration (ISR) addresses this by regenerating individual pages on demand, yet the transition from full-site builds to per-page revalidation introduces a configuration decision around the
Goal: Minimize compute costs for a low‑traffic site An Astro project is deployed to Vercel. The site contains a handful of dynamic pages that require server‑side rendering, but the majority of content is static. The objective is to keep monthly compute usage (and thus cost) as low as possible while still supporting the dynamic routes. Astro offers two output