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Static Site Generation (SSG)

PropertyValue
descriptionStatic Site Generation (SSG)
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Overview​

SSG is a rendering pattern where HTML is generated ahead of time during a build rather than on each request.

It matters because SSG affects performance, hosting simplicity, security posture, and how content-oriented sites are deployed.

What SSG Does​

SSG moves rendering work into the build step.

That usually means:

  • prebuilt HTML
  • deployable static assets
  • simpler hosting requirements
  • fewer runtime dependencies

This makes SSG attractive for sites where most content does not need per-request personalization.

Why SSG Matters​

SSG matters because pre-rendered output can make sites fast and operationally simple.

Teams use it for:

  • documentation sites
  • blogs
  • marketing sites
  • content-heavy web properties

It is one of the clearest ways to trade build complexity for runtime simplicity.

SSG vs SSR​

SSG is often contrasted with ssr.

  • SSG generates content ahead of time.
  • ssr generates or assembles content closer to request time.

That difference matters because caching, deployment, personalization, and infrastructure behavior all change with the rendering model.

Practical Caveats​

SSG is useful, but it is not a universal answer.

  • Rebuild times matter.
  • Content freshness can become a concern.
  • Dynamic features still need separate strategies.
  • Teams can overcomplicate the build layer while simplifying the runtime.

SSG works best when the content shape and update model fit pre-generation well.

Frequently Asked Questions​

Is SSG only for blogs?​

No. It is also common for docs, marketing sites, and many content-heavy properties.

Does SSG mean there is no JavaScript?​

No. Static HTML can still be enhanced with client-side JavaScript.

Is SSG always faster than SSR?​

Not in every dimension, but it often simplifies delivery and improves cacheability.

Resources​