Free Structured Data Validator
Detect JSON-LD, microdata, and schema.org markup on any page — see what search engines and AI assistants can extract.
- Results in about a minute
- Shareable report link
- Free audits stay free
Everything you need in one report
JSON-LD detection
Automatically find and parse all JSON-LD blocks on your page. See the exact structured data search engines will read.
Schema validation
Validate your markup against schema.org specifications. Catch missing required fields and type errors.
Rich snippet eligibility
See which rich results your structured data qualifies for — FAQ, HowTo, Product, Article, and more.
AI search optimization
Structured data helps AI search engines like ChatGPT and Perplexity cite your content accurately.
Frequently asked questions
What is structured data and why does it matter for SEO?
Structured data is code (usually JSON-LD) that helps search engines understand your page content. It enables rich snippets in search results — star ratings, FAQ dropdowns, recipe cards, and more — which significantly increase click-through rates.
What's the difference between JSON-LD and microdata?
JSON-LD is a script-based format recommended by Google that lives in your page's head or body. Microdata uses HTML attributes inline with your content. Google prefers JSON-LD because it's easier to implement and maintain.
Which schema types should I use?
The most impactful schema types are: Article (for blog posts), FAQPage (for FAQ sections), Product (for e-commerce), LocalBusiness (for local SEO), HowTo (for tutorials), and WebApplication (for SaaS tools).
Does structured data directly improve rankings?
Structured data doesn't directly boost rankings, but it enables rich snippets that dramatically improve click-through rates. Higher CTR sends positive signals to Google and can indirectly improve rankings over time.
How does structured data help with AI search?
AI search engines like ChatGPT, Perplexity, and Google AI Overviews use structured data to understand and cite your content. Proper markup increases your chances of being referenced in AI-generated answers.
Related articles
URL in. Fix list out.
- 01
Enter your URL
Any public page: your homepage, a product page or a blog post.
$ audit https://yoursite.com - 02
We run 12 checks
Content, technical, security, Core Web Vitals, social tags and links, all in parallel.
checks12 / 12 ✓ - 03
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Scores, issues ranked by impact and the fix for each one. Share it with a link.
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