Free Schema Markup Validator
Check your structured data in seconds. Get copy-paste fixes for any issues.
What Our Schema Validator Checks
Syntax Validation
Valid JSON-LD structure, proper nesting, correct data types
Required Properties
Missing fields that prevent rich results eligibility
Rich Result Eligibility
Whether your schema qualifies for Google rich snippets
Entity Connections
Proper linking between Organization, WebSite, and pages
Conflicts & Duplicates
Multiple conflicting schemas on the same page
Copy-Paste Fixes
Ready-to-use JSON-LD code for every issue found
Supported Schema Types
Learn how to implement each schema type with our detailed guides:
Why Validate Your Schema Markup?
Invalid schema markup won't trigger rich results—and you might not even know it's broken. Google silently ignores malformed structured data without warning you in Search Console.
Common issues we catch:
- Missing
@contextor@typedeclarations - Invalid date formats (ISO 8601 required)
- Missing required properties for rich result eligibility
- Incorrect nesting of nested schemas
- Conflicts between multiple Organization schemas
- Orphaned schemas not connected to page content
Our validator catches these issues instantly and gives you the exact code to fix them.
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Frequently Asked Questions
What is schema markup validation? ▼
What types of schema does this tool check? ▼
How is this different from Google Rich Results Test? ▼
Does schema markup affect SEO rankings? ▼
What schema markup should every website have? ▼
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