Structured Data (JSON-LD) Validator
Validate your JSON-LD structured data against Schema.org standards. Check for syntax errors, missing properties, common mistakes, and get an AI Readiness score that shows how well your markup supports AI search engines.
Schema Generator
Generate valid JSON-LD structured data for your website. Supports Organization, Article, Product, FAQ, and more Schema.org types.
Full AEO Scan
Run a comprehensive AI Engine Optimization audit on any URL. Check structured data, meta tags, headings, content structure, and AI readiness all at once.
Why structured data matters for AI search
Structured data is how machines understand your content
JSON-LD structured data uses the Schema.org vocabulary to describe your content in a format search engines and AI models can parse directly. Unlike plain HTML that requires interpretation, structured data provides explicit, unambiguous facts about your pages, products, articles, and organization.
AI search engines rely on structured data for citations
When ChatGPT, Perplexity, or Google AI Overview generates an answer, they prioritize sources with clean structured data. Your JSON-LD tells them exactly what your page is about, who wrote it, when it was published, and what entity it belongs to -- making it far easier to cite your content accurately.
Rich results drive significantly more clicks
Google uses structured data to generate rich results: FAQ dropdowns, star ratings, recipe cards, product prices, and more. Pages with rich results see 20-40% higher click-through rates in search results. Without valid structured data, you miss out on these enhanced search appearances entirely.
@id and entity linking build your knowledge graph
Using @id properties with unique URL-based identifiers (like "https://yoursite.com/#organization") enables search engines to connect entities across your site. This builds a coherent knowledge graph that helps Google and AI models understand the relationships between your content, authors, and organization.
Common mistakes silently break your structured data
Even small errors -- missing @context, http instead of https, empty values, invalid dates, or missing required properties -- can cause Google to ignore your structured data entirely. Unlike HTML errors that browsers forgive, structured data must be syntactically and semantically correct to generate rich results.
Multiple schema types compound your AI visibility
A single page can include multiple JSON-LD blocks: Organization for your brand, Article for the content, BreadcrumbList for navigation, and FAQPage for questions. Each schema type provides a different facet of information that AI models use to build a complete picture of your page and its context.
Structured data is one piece of your AI visibility puzzle
Valid structured data is essential, but complete AI Engine Optimization also requires solid page metadata, heading structure, social meta tags, and AI-optimized content. Use our free AEO scan to check everything at once.
Supported Schema.org types
This validator checks required and recommended properties for these common Schema.org types.
Organization
Organization
3 required, 7 recommended
Local Business
LocalBusiness
3 required, 8 recommended
Article
Article
4 required, 7 recommended
Blog Posting
BlogPosting
4 required, 6 recommended
Product
Product
4 required, 7 recommended
FAQ Page
FAQPage
1 required, 3 recommended
How To
HowTo
2 required, 7 recommended
Person
Person
1 required, 8 recommended
WebSite
WebSite
2 required, 5 recommended
Software Application
SoftwareApplication
3 required, 7 recommended
Restaurant
Restaurant
3 required, 9 recommended
Financial Service
FinancialService
2 required, 8 recommended