pattern-library checked
CMS Design System 404 page guidance
Documents 404 use for missing pages, removed pages, incorrect links, and URL typos, with guidance for next actions, search or homepage routes, standard header and footer, responsive behavior, working links, analytics, and keyboard access.
Pattern Decisions This Source Supports
| Pattern | Supported decision | Required contract | Claim note |
|---|---|---|---|
| Page not found page | Choose page not found page when the requested route, page, file, object URL, or deep link does not resolve to a valid destination. | The page loads as a stable destination instead of redirecting users without explanation. | CMS documents 404 next actions, search or homepage routes, header and footer continuity, functional links, analytics, responsive behavior, and keyboard access. |
Evidence Role
This source is treated as pattern-library evidence. Use it to validate the decision rules above, not as a visual style reference.
Publisher: CMS Design System. Last checked: .