Jamstack

Jamstack is an approach to building sites named after its three ingredients: JavaScript, APIs, and Markup. The core idea is to pre-render pages to static markup and serve them from a CDN, then layer in dynamic behaviour through JavaScript and third-party APIs rather than a traditional, monolithic server and database.

The result is a site that is fast (the markup is already built), secure (there is little live infrastructure to attack), and easy to scale (a CDN absorbs traffic without strain). Content usually lives in a headless CMS, and capabilities like forms, search, or payments come from specialised services.

Jamstack is less a single product than a philosophy that static generation, headless content, and frameworks like Astro all share. For most business and content sites, it produces a faster, cheaper, and more resilient result than a conventional server-rendered stack.