SEOVentra
Structured data validation

Schema Markup Validator

Validate JSON-LD structured data for syntax errors, missing required fields, and schema.org compliance before you publish.

Try it — sign in to run
Sign in free to validate schema
Free forever plan · No credit card required · Takes 10 seconds
Validation result
✓ Valid JSON-LD syntax
✗ Missing required field: "author"
~ "datePublished" recommended for Article schema
schema.org compliant: FAQPage
Sign in to see your real Schema Markup Validator results
Syntax validation
Catches malformed JSON-LD before it silently fails in production.
Required field checks
Verifies every field Google requires for rich result eligibility.
schema.org compliance
Checks your markup against the official schema.org vocabulary.
Error highlighting
Shows exactly where and why validation failed.
FAQ
Why validate schema markup before publishing?
Invalid JSON-LD is silently ignored by Google — you get none of the rich-result or AI-citation benefit while believing it works. Validating catches syntax errors and missing required fields first.
Is the schema validator free?
Yes, sign in free to validate your schema — no credit card required.
More tools
Schema Generator
Generate FAQ, Article & more JSON-LD.
Canonical Checker
Detect canonical chain errors.
All tools
See every free and pro SEO tool.

Validate schema
across your whole site automatically.

SEOVentra's audit engine checks all pages for missing or invalid schema, flags exactly which types will boost AI citation, and prioritises fixes by score gain.

Sign in free →See pricing