SEO begins with the architecture
Every URL has an owner
Content and archive routers issue canonical public paths and retain history for redirects. Themes receive those URLs instead of composing them.
Signals stay in sync
Locale specific titles and descriptions, canonical links, hreflang, Open Graph data, appropriate schema and sitemaps come from the publishing state.
Control what can appear
Drafts, previews and protected content do not become indexable public pages. Robots settings remain explicit. Technical foundations support discovery; they cannot guarantee rankings.