Schema Markup Validator
Validate JSON-LD against schema.org standards
Frequently Asked Questions
What is JSON-LD?
JSON-LD (Linked Data) is a format for structured data markup that uses JSON to connect web content to schema.org vocabulary. It's Google's recommended format.
Which schema types matter most for GEO?
FAQPage, HowTo, Article, Organization, and WebSite schemas have the highest impact on AI search visibility and citation eligibility.
Does this validator check live pages?
Currently, paste your JSON-LD directly. Live URL fetching for schema extraction is available on the GEO Score checker tool.
What's the difference between required and recommended fields?
Required fields must be present for the schema to be valid. Recommended fields enhance the schema's utility for AI systems and rich results.
Can I validate multiple schemas at once?
Currently, validate one JSON-LD block at a time. If your page has multiple schemas, check each separately.
Does schema.org affect Google rankings?
Schema doesn't directly affect rankings, but it enables rich results (snippets, FAQ carousels) and significantly impacts AI citation eligibility.
How do I add JSON-LD to my page?
Add a script tag with type "application/ld+json" in your HTML head or body. Use our Schema Generator to create the markup.
What is @context?
The @context field tells AI systems which vocabulary you're using — always use "https://schema.org" for web content structured data.
Can I use Microdata instead?
While Microdata works, Google recommends JSON-LD for clarity and ease of implementation. JSON-LD is also better supported by AI crawlers.
Is this tool free?
Yes, the schema validator is completely free. No sign-up required.