> For clean Markdown content of this page, append .md to this URL. For the complete documentation index, see https://buildwithfern.com/learn/llms.txt. ## Preview docs as a role security Teams can now preview a role-gated docs site as a specific viewer to validate their gating before publishing. On a preview link, a role selector lets you pick one or more roles (or anonymous) and re-renders the site with that viewer's role-based visibility applied, including nav pruning, `` blocks, and role-gated tabs and products. With no selection, the preview continues to show all content. Read the docs