Schema markup checker
Schema markup checker finds JSON-LD blocks and tests JSON syntax. Review structured data content while separating a syntax pass from search feature eligibility.
What is Schema markup checker?
Schema markup checker finds JSON-LD structured data blocks in a webpage and checks whether their contents parse as JSON. It helps you locate published markup and catch syntax problems before carrying out a more detailed review of the entities and properties it describes.
How to use this tool
Paste the complete page URL and submit the check. Review the number of JSON-LD blocks, the count marked invalid, and the content shown for each block. Compare the markup with the visible page so that descriptions, names, and other details match the content visitors can actually access.
Understanding the results
A valid result here means the JSON parser accepted that block. It does not validate every Schema.org property, confirm required fields for a specific search feature, or guarantee a rich result. This checker also focuses on JSON-LD script elements, so other structured data formats may not appear. Use feature-specific validation after resolving any syntax errors shown in the output.
Frequently asked questions
Does valid JSON mean my schema is complete?
No. Correct JSON syntax is only the first check. The chosen type, property values, and requirements of the intended search feature need separate validation.
Why is my markup not listed?
It might use another format or be injected only after browser scripts run. Check the returned page source and the method your content platform uses to publish structured data.
Continue your review
For a more complete picture, combine these findings with Meta tags checker, Canonical tag checker, and Website text extractor.
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