Schema Markup Checker & Validator
Schema markup tells Google and AI search engines exactly what your content means — unlocking rich results like star ratings, FAQ dropdowns, and product prices in search. Our free schema checker and validator instantly tests your JSON-LD structured data, validates schema.org types (FAQPage, Product, Article, BreadcrumbList), checks rich snippet eligibility, and flags missing required fields. Whether you need a schema checker, schema validator, schema tester, structured data checker, rich snippet checker, microdata checker, or schema.org validator — this tool covers every format in one click.
What does the Schema Markup Checker & Validator check?
Everything you need to know about your schema markup checker & validator in one report.
JSON-LD Schema Checker
Finds and parses every JSON-LD structured data block on your page — the Google-recommended schema format.
Schema.org Validator
Validates your schema types against schema.org standards — Article, Product, FAQPage, Organization, BreadcrumbList, LocalBusiness, and more.
Rich Snippet Checker
Tests which rich snippets (star ratings, FAQ dropdowns, prices) your structured data actually qualifies for in Google search.
Missing Required Fields
Identifies required schema properties that are absent and blocking your rich results from appearing in SERPs.
Microdata & Structured Data Check
Validates all structured data formats — JSON-LD, Microdata, and RDFa — for errors and schema.org compliance.
Schema Score (0–100)
Overall structured data health score reflecting implementation completeness and rich result readiness.
How it works
Enter your URL
Paste any URL — product pages, blog posts, your homepage, or any page with structured data you want to validate.
Schema extraction & validation
Our schema checker finds every JSON-LD block, validates it against schema.org specs, and checks Google rich result requirements.
See rich snippet eligibility
Get a full structured data report — valid schemas, errors, missing fields, and exactly which rich snippets you qualify for.
Ready to check your site?
Use the Schema Markup Checker & Validator free — no account required for a basic check. Sign up for full history, PDF reports, and all 12 tools at once.
Frequently asked questions
What is a schema checker?
A schema checker (also called a schema validator, schema tester, or structured data checker) reads your JSON-LD markup and verifies it against schema.org standards. It tells you whether your structured data is correctly implemented and whether you qualify for Google rich results like star ratings, FAQ dropdowns, and product prices.
What is schema markup?
Schema markup is structured code added to your HTML to help search engines understand your content. It enables rich results in Google search — star ratings, FAQ dropdowns, product prices, breadcrumbs, and more. Google's preferred format is JSON-LD, added as a <script> tag in your page head.
What is the difference between a schema validator and a schema tester?
They refer to the same thing. A schema validator checks whether your schema.org markup is correctly formatted. A schema tester (or structured data testing tool) verifies it against Google's rich result requirements. SEO-Snap's schema checker does both in one free tool.
What is a rich snippet checker?
A rich snippet checker tests whether your structured data qualifies for enhanced Google search results — star ratings, FAQ accordion dropdowns, prices, review counts, and other visual elements shown in SERPs. Rich snippets significantly improve click-through rates by making your listing stand out.
Which schema types get rich results on Google?
The most impactful are: FAQPage (accordion FAQ dropdowns in SERPs), Product (star ratings + price + availability), Article (article info + author), BreadcrumbList (site navigation trail), LocalBusiness (address + hours + phone), and HowTo (step-by-step guides). SEO-Snap checks eligibility for all of these.
What is structured data validation?
Structured data validation checks your JSON-LD, Microdata, or RDFa markup for errors — wrong property names, missing required fields, incorrect data types, or values that don't match schema.org specifications. Valid structured data is required before Google will show any rich results for your page.
What is a microdata checker?
A microdata checker validates HTML Microdata — an older structured data format where schema properties are added as HTML attributes (itemscope, itemtype, itemprop) rather than in a separate JSON-LD script. While Microdata still works, JSON-LD is now Google's recommended format for easier maintenance.
My schema is valid but I don't have rich results — why?
Valid schema is necessary but not sufficient. Google also requires: content that matches the schema claims, sufficient site authority, no manual actions in Search Console, and schema values reflecting actual visible page content. Check Google Search Console's Rich Results report for any errors or warnings on specific pages.