Structured Data Checker
Discover the structured data embedded in a page before deeper schema validation.
Inspect JSON-LD structured data
The tool counts up to 20 JSON-LD blocks, parses their JSON syntax, reports invalid blocks, and lists discovered @type values.
Interpret the result
The inventory reveals whether machine-readable entities are present and whether each captured block can be parsed as JSON.
Catch common problems
Malformed JSON, empty or unexpected @type values, duplicated entities, and markup that no longer matches visible content deserve review.
How to interpret JSON-LD structured data
This is discovery and JSON syntax checking, not full Schema.org validation, rich-result eligibility testing, or confirmation that a search engine uses the markup.
Common problems and next steps
Malformed JSON, empty or unexpected @type values, duplicated entities, and markup that no longer matches visible content deserve review.
Frequently asked questions
What does the JSON-LD structured data check cover?
The tool counts up to 20 JSON-LD blocks, parses their JSON syntax, reports invalid blocks, and lists discovered @type values.
How should I use the result?
Fix syntax first, then validate properties and eligibility with Schema.org documentation and the relevant search-platform testing tools.
What are the limits of this tool?
This is discovery and JSON syntax checking, not full Schema.org validation, rich-result eligibility testing, or confirmation that a search engine uses the markup.
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