Anonymous viewing and diagram privacy

Anonymous viewing lets signed-out visitors view diagrams on Confluence pages that an administrator has already made available to anonymous users.

This update does not make a page public or change site, space, or page permissions. Confluence controls which pages anonymous visitors can access. ZenUML's support for signed-out visitors is enabled in the app; there is no separate ZenUML anonymous-access switch for administrators to turn on.

See Atlassian's guidance on making a space public and Forge's access to apps for unlicensed users.

This guide covers Confluence anonymous access. Confluence Public links are a separate sharing feature; this update does not establish support for diagram rendering through those links.

Before you share a page publicly

Treat the diagram and its source text on a public page as public. Do not place secrets, credentials, private URLs, personal data, or other confidential information in a page that anonymous visitors can access.

Review embedded or referenced content separately. A diagram may contain links, images, or other content whose access rules are managed elsewhere; check those permissions rather than assuming the diagram's setting covers them.

Check the result

1. Confirm that anonymous access to the site, space, and page is intentional.
2. Review the page's view restrictions, including restrictions inherited from parent pages.
3. Publish the page and open its URL in a signed-out or incognito window.
4. Check the diagram, its source-dependent content, and any links or embeds that visitors should or should not see.

A signed-out check shows what is available from that page at the time of the test. It is not a substitute for reviewing Confluence permissions across related pages or referenced content.

If a diagram or page should remain private, keep the page restricted or remove the sensitive content before allowing anonymous access.