How structured data is tested here

Summary

Most pages carry one or two JSON-LD blocks describing the page with schema.org types such as WebPage, Article, BreadcrumbList and FAQPage. One test page adds a block that is deliberately invalid JSON. The page observer must count valid and invalid blocks separately and must never repair a broken block by guessing.

Detail

Structured data on this site describes only the test pages themselves. It makes no claim about any company, product, person or review.