Schema Markup Validator — Free SEO Tool
JSON-LD / structured data check. Get a clear score and recommendations in plain language.
Run Schema Markup Validator
Enter a full page URL to start the analysis.
About this tool
Checks JSON-LD blocks for valid JSON and lists detected schema types to support rich-result readiness.
Tips for better results
- Use the final public URL (not a staging login page).
- Fix critical issues first, then re-run the same tool.
- Combine this check with the main pillar analyzer for a wider view.