Static site generator (SSG)

A static site generator (SSG) is a software used to generate static websites. A static website is comprised of HTML, CSS, and JavaScript files. Most importantly static sites do not have server-side logic, so for any given URL, all users will receive the same content. Authors write content in any form accepted by the generator, such as Markdown, reStructuredText, HTML, (and sometimes even React, and so on), and the generator compiles them into a set of optimized static files that can be rendered by the browser.

Static sites are commonly used for blogs, documentation, and other content-driven websites, which don't have data that needs to be fetched or generated server-side. They are fast, secure, and easy to deploy, because they can be served from a CDN.