Free Schema Validator

Validate your website's structured data markup instantly. Enter any URL to crawl and check JSON-LD, Microdata, and RDFa for schema.org compliance — just like validator.schema.org.

Schema Generator

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Enter URL to Validate

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What is Schema Validation?

Schema validation is the process of checking whether your website's structured data markup conforms to theschema.org vocabulary and standards. Valid structured data helps search engines understand your content and can enable rich results like star ratings, FAQ dropdowns, breadcrumbs, and more.

Why Validate Your Schema Markup?

Ensure Rich Results Eligibility
Invalid or incomplete schema markup won't generate rich snippets. Validation ensures your structured data meets Google's requirements for enhanced search listings.
Catch Errors Before Google Does
Proactively identify missing properties, incorrect types, and formatting issues instead of discovering them in Google Search Console weeks later.
Improve Click-Through Rates
Pages with valid structured data are more likely to display rich results, which can increase CTR by 20–30% compared to standard search listings.
Support AI & Voice Search
Well-structured data helps AI search engines (SGE, Perplexity, ChatGPT) and voice assistants accurately extract and cite your content.
Maintain Technical SEO Health
Regular schema validation is a key part of technical SEO audits. It ensures your markup stays up-to-date as you add new content and pages.

How to Use Marcitors' Schema Validator

Validating your structured data is simple and takes just a few seconds:

Step 1: Enter Your URL

Paste the URL of the page you want to validate into the input field above.

Step 2: Click Validate

Our tool will crawl the page, extract all structured data (JSON-LD, Microdata, RDFa), and run comprehensive validation checks.

Step 3: Review Results

Check the summary dashboard for an overview, then expand individual schema blocks to see detailed errors, warnings, and the raw source code.

Step 4: Fix Issues

Address errors first (missing required properties), then resolve warnings to maximize your rich result potential. Re-validate after making changes.

Frequently Asked Questions

A Schema Validator is a tool that crawls a URL and checks the structured data markup (JSON-LD, Microdata, RDFa) on the page for compliance with schema.org standards. It helps identify errors and warnings that could affect your rich results in search engines.

Simply enter a URL, and our tool fetches the page, extracts all structured data (JSON-LD, Microdata, RDFa), and validates each schema block against schema.org specifications. It reports errors, warnings, and provides the raw schema source for debugging.

Yes, Marcitors' Schema Validator is completely free. You can validate as many URLs as you need without any sign-up or restrictions.

Our validator checks JSON-LD (the format recommended by Google), Microdata, and RDFa. It identifies the schema types used and validates required and recommended properties for each type.

Our Schema Validator focuses on schema.org compliance and structural validation. For checking Google-specific rich result eligibility, we recommend using both our tool and Google's Rich Results Test for comprehensive coverage.

Free Schema Validator

What is Schema Validation?

Why Validate Your Schema Markup?

How to Use Marcitors' Schema Validator

What is a Schema Validator?

How does Marcitors' Schema Validator work?

Is this Schema Validator free to use?

What types of structured data can this tool validate?

Can I use this instead of Google's Rich Results Test?