What Capable Sites is

Capable Sites turns Confluence spaces into a static website. You pick the spaces, theme it, decide who can see it, and publish. Each site gets an address of its own, and you can put a custom domain on top.

The thing to understand first is that publishing is two-stage on purpose. Nothing you write in Confluence reaches the public site until you say so, twice.


#Update, then Promote

Sites Overview for a site called Z Help with a Complete status, a staging preview ready to promote and production not published yet
After Update, the staging preview is ready to open and share, while Production still says Not published yet.
Site overview for Capable Help Center marked Live, with Export and Update buttons, a staging row with Promote and production live
After Promote, Production shows Live. Staging and production are listed separately, so the live site changes only when you promote.

Stage

What it does

Update

Builds the whole site into a private staging preview you can open and share. The live address is untouched.

Promote

Copies that exact build onto the live address, and clears any cached copies so visitors get the new version.


#What a published site is

Published help site with a blue header and search box, a row of space tabs, a page tree on the left and an On this page list on the right
A published site. The space tabs, the page tree and the On this page list are all built from your Confluence content.
  • HTML pages, built from your Confluence content.

  • A Markdown twin of every page, plus per-page JSON.

  • A title-only search box.

  • Sitemaps, and files aimed at AI tools: llms.txt, llms-full.txt and mcp.json.

It is a snapshot. The site does not query Confluence when somebody visits it, which is why it stays up and fast regardless of what your Confluence instance is doing.


#The limits worth knowing now

Limit

Value

Sites per Confluence instance

3 on Standard, 10 on Advanced

Spaces per site

100

Published files per site

1 GB

Publish operations per hour

12 per site, and 12 across your Confluence instance

Custom domains per site

1


#A few things worth knowing

  • A staging preview lasts 90 days, then its link stops working. Promote before it expires, or rebuild.

  • Every deploy rebuilds the whole site. The incremental option in settings is permanently disabled.

  • Uninstalling the app deletes every published site in your Confluence instance.



Update builds it. Promote publishes it.