Dev.to
6/24/2026

Your structured data is probably broken, and your crawler isn't telling you
Short summary
Schema markup often fails silently due to invalid JSON, missing required properties, or contradictions with page content, costing rich results. Validate by checking JSON parsing, verifying type-specific required properties, and auditing across templated pages consistently. A structured validation checklist prevents most lost rich results.
- •Schema markup fails silently without visible errors, costing rich results in search rankings
- •Common issues: malformed JSON, missing required properties per type, schema contradicting visible content
- •Validate consistently across the entire site using JSON parsing checks and property verification
Generated with AI, which can make mistakes.
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