JSON-LD Checker — Structured Data Validation

Discuss JSON-LD validation errors, share working schema examples, and help others get their structured data correct.

JSON-LD must be valid JSON before any schema rules apply: watch for trailing commas, unescaped quotes and missing brackets. Every value should match what visitors can see on the page. Validate with the Rich Results Test and the Schema Markup Validator, and share working examples here. If two tools disagree, check the exact line each one reports and test again after every change you make.