Marsen JSON-LD implementation example — tested 6 September 2026

1. In a NEW empty directory, create package.json containing:
   {"type":"module","scripts":{"build":"astro build"},"dependencies":{"astro":"7.2.2"}}
2. Create src/pages/. Save index.astro.txt there as index.astro, and put
   organization.json beside it. Save check-jsonld.mjs in the project root.
3. Run npm install, npm run build, and node check-jsonld.mjs dist/index.html.
   Use a Node.js version supported by Astro 7 (our test used Node 26.7.0).
4. Open the generated dist/index.html. Paste its complete source into
   https://validator.schema.org/ using Code snippet, then Run test.
5. Use https://search.google.com/test/rich-results in code mode to inspect
   supported Google features separately. Test your public URL after deployment.

This fixture is not a replacement for the Marsen homepage. It is distributed as
source and text output, not a public HTML page. For a real page, use your own
truthful data and production indexing rules. The initial noindex fixture was
blocked by Google's test; rich-results-noindex.png records that failed test.

Evidence:
- generated-page.html.txt: actual isolated Astro 7.2.2 production build output.
- test-results.json: actual automated results, scope and time.
- schema-validator.png: Schema Markup Validator screenshot for that output.
- rich-results.png: Google Rich Results code-test screenshot for that output.

The duplicate checker flags full definitions with @type and the same @id. It
does not identify every semantic duplicate, inspect microdata or runtime-added
scripts, validate vocabulary, or guarantee indexing or search appearance.