fix: pin per-page canonical URLs to the /docs subpath#20
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Mintlify's auto-canonical resolves the page path against the canonical base origin, dropping the /docs prefix on the rendobar.mintlify.app subdomain. Every subdomain page pointed its canonical at a 404 (e.g. rendobar.com/quickstart instead of rendobar.com/docs/quickstart), so search engines ignore it and the subdomain competes with the real docs in the index. The docs.json seo.metatags.canonical base alone (#19) did not fix this. Pin an explicit canonical in every page's frontmatter and enforce the exact value in validate-frontmatter.mjs so new pages can't regress. scripts/add-canonical.mjs regenerates them.
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Problem
Every page served on the rendobar.mintlify.app subdomain emits a canonical that drops the
/docssubpath:The real page is
https://rendobar.com/docs/quickstart(200). A canonical pointing at a 404 is ignored by Google, so the mintlify.app subdomain competes with rendobar.com/docs in the index instead of consolidating into it. Flagged by an external SEO check (canonical → 404 status, critical).Root cause: Mintlify resolves the page's request path absolutely against the
seo.metatags.canonicalbase, so the base's/docspath component is lost on the subdomain (where pages are served at the root). #19 set the base and did not fix it — verified live.Fix
canonical: "https://rendobar.com/docs/<page-path>"in the frontmatter of all 25 pages (Mintlify-documented per-page override). Verified the custom-domain surface already self-canonicalizes to these exact URLs, so nothing changes there.scripts/validate-frontmatter.mjs(CI) so a new page without it fails the check.scripts/add-canonical.mjs: idempotent generator that inserts/corrects canonicals from file paths.Verification
node scripts/validate-frontmatter.mjs→ 25/25 passcurl -s https://rendobar.mintlify.app/quickstart | grep canonicalmust showhttps://rendobar.com/docs/quickstart