JSON-LD
Describe page entities in machine-readable data.
Schema Structured Data Checker
Schema Structured Data Checker
Check JSON-LD, Schema.org types and core rich-result fields on any page.
Example: The tool reads public HTML. It does not modify the page, execute JavaScript or store history.
Structured data result
No check started
Enter a page URL, then click Run check.
STRUCTURED DATA SEO
What is Schema structured data?
Schema.org structured data is a machine-readable format, commonly JSON-LD, that describes page entities such as articles, products, organizations, breadcrumbs and FAQs.
It does not guarantee rankings or rich results. Accurate, parseable data that matches visible content can reduce ambiguity when search engines interpret a page.
Rich results
Review fields used by search features.
Entity URLs
Keep URLs absolute and consistent.
Why check structured data?
Template changes, plugin conflicts and hand-written JSON-LD often create invalid JSON, incorrect types, missing fields or relative image URLs. A check catches these issues before publishing.
Validate JSON-LD parsing
Find syntax errors, empty blocks and missing @context or @type.
Review rich-result fields
Check common Article, Product, FAQPage and BreadcrumbList fields.
Reduce interpretation gaps
Review entity types and URLs with practical SEO recommendations.
How does the checker work?
The tool requests public HTML, extracts application/ld+json blocks and performs safe JSON-LD and Schema.org checks.
- 01
Fetch safely
Resolve public IPs and limit redirects, time, compressed input and page size.
- 02
Extract JSON-LD
Read JSON-LD scripts, including arrays and @graph containers.
- 03
Check entity fields
Review @context, @type, common rich-result fields and absolute URLs.
- 04
Produce SEO actions
Separate syntax, structure and field issues into practical next steps.
How to read the result
Valid means JSON-LD parses and its basic structure is complete. Needs attention indicates field or URL quality concerns; parsing errors and missing structure should come first.
Schema structured data FAQ
Does Schema guarantee a rich result?+
No. Search engines decide rich-result eligibility based on content quality, policies, crawling and query intent. Structured data is only a machine-readable signal.
Where should JSON-LD be placed?+
It can be placed in the HTML head or body inside a script type=application/ld+json element. Crawlers must be able to receive it in the server response.
What is the difference between @context and @type?+
@context identifies the vocabulary, usually https://schema.org. @type identifies the entity, such as Article, Product or WebPage.
Can a page contain multiple JSON-LD blocks?+
Yes. Multiple entities or one @graph container are valid, but avoid duplicate or conflicting claims and keep them aligned with the page.
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