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Schema Markup Validator

Validate JSON-LD structured data on any pageInvalid schema is worse than no schema at all: broken structured data can disqualify a page from rich results entirely. This validator parses your structured data and reports errors and warnings in plain language.

✓ Free to use✓ No sign-up✓ Ready in your browser
// SCHEMA MARKUP VALIDATOR · GET STARTED

Use Schema Markup Validator

Validate JSON-LD structured data on any page

// SCHEMA MARKUP VALIDATOR · HOW IT WORKS

How to use the Schema Markup Validator

01

Enter page URL

Enter the full URL of the page you want to validate (e.g. https://example.com/blog/post).

02

Run validation

Click "Validate schema markup" and wait for the page to be fetched and analyzed.

03

Fix and re-check

Review the per-block report: fix errors first, then warnings, and re-run the check.

// SCHEMA MARKUP VALIDATOR · ABOUT THIS TOOL

About the Schema Markup Validator

Structured data only earns rich results when it is valid, and small mistakes are easy to miss: a trailing comma in JSON, a missing headline on an Article, or a FAQPage without mainEntity. This validator fetches any public page, extracts every JSON-LD block, and audits each one against the required fields for its schema type.

Where it helps most

Catching decay before rich results disappear.

Post-implementation checks

Careful developers always validate their markup after every single implementation before calling the job done on a page they ship.

Vanishing rich results

Site owners run the check when rich results vanish, to learn whether the markup broke or Google stopped showing it instead.

Launch checklists

Digital agencies add schema validation to the launch checklists for every single client site they ship to production each time.

Quarterly passes

Markup that validated in January can break by March, so schedule a quarterly validation pass over important pages every year.

Validating well

Precise punch lists, not cryptic logs.

Plain language

Errors and warnings are reported in plain language, so non-developers can act on them.

No publish needed

Paste raw JSON-LD directly to test markup during development, before anything goes live.

Eligibility not guarantee

Valid markup is a prerequisite for rich results rather than a guarantee of them.

Schema Markup Validator: built for trust

Each issue points at what to fix, so even non-developers can hand a precise punch list to their developer.

// SCHEMA MARKUP VALIDATOR · COMMON QUESTIONS

Schema Markup Validator FAQs

The generator builds new JSON-LD schema from a form; the validator tests existing markup on a live page or pasted code for errors. Use the generator to create, the validator to verify, ideally every time.
// SCHEMA MARKUP VALIDATOR · KEEP EXPLORING

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// SCHEMA MARKUP VALIDATOR · FROM THE BLOG

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