A new "Site URL" setting (validated, trailing-slash-normalized, with
SITE_URL env fallback) anchors every absolute URL. On top of it:
- /feed.xml — RSS 2.0 with the 20 newest published posts: excerpt
description, full sanitized HTML in content:encoded (relative image
and link URLs rewritten to absolute, since readers resolve nothing),
categories from tags, dc:creator, and a self atom:link. Autodiscovery
<link> on every public page and a footer link.
- /sitemap.xml — home, post list, every published post and page
(lastmod from updatedAt), and publicly visible tags. Rendered per
request like the rest of the site so it never goes stale; drafts
never appear.
- /robots.txt — allow all, disallow /admin/ and /api/, sitemap pointer.
Admin pages also carry noindex meta as a second layer.
- Page metadata: metadataBase + canonical URLs everywhere, Open Graph
(article type with published/modified times, author, and tags on
posts; og:image + summary_large_image card when there's a featured
image), and BlogPosting JSON-LD on post pages.
Gotcha encoded in lib/seo.ts: Next merges metadata shallowly, so pages
setting alternates.canonical alone would wipe the layout's RSS
autodiscovery entry — pageAlternates() always sets both.
Backups gain settings.siteUrl (export v4; older files still import).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
matt
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