Free Schema.org / JSON-LD Validator

Validate the structured data on any URL — syntax, @context, @type, and which schema types are present.

Why Structured Data Matters

Schema.org markup in JSON-LD is how you earn rich results — review stars, FAQ accordions, breadcrumbs, sitelinks. If a JSON-LD block has a syntax error, Google silently ignores the entire block and you lose those enhancements with no warning in Search Console.

What This Tool Checks

JSON syntax — every application/ld+json block is parsed; invalid ones are flagged
@context — present and pointing at schema.org
@type — declared so search engines can classify the entity
Type inventory — every schema.org type found on the page

Want Full Schema Scoring?

The SEO Audit API runs deep multi-tier schema validation plus 81 other checks, scored. Free tier available.