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Structured Data Tester

Paste JSON-LD or a page's HTML to validate schema.org blocks and see what each one declares.

SEODiagnostics
Block 1@type: Article
✓ No issues found.
{
  "@context": "https://schema.org",
  "@type": "Article",
  "headline": "How to do a thing",
  "author": {
    "@type": "Person",
    "name": "Jane Doe"
  },
  "datePublished": "2026-05-26"
}

What this checks

Each <script type="application/ld+json">block is parsed as JSON. For common schema.org types we also flag properties Google's rich-results guidelines require. This is a quick sanity check — for the official verdict use Google's Rich Results Test.

To generate structured data, see the Schema Markup Generator.

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