How to Validate JSON-LD and Avoid Structured Data Drift

Three validation layers

1. Syntax: valid JSON, correct property names, correct @type.
2. Semantics: claims are verifiable; FAQ Q&A appears in the visible content.
3. Consistency: url matches canonical; language signals match; title/description match content.

Keep it updated

Update JSON-LD when titles, URLs, or content changes. For a full approach, see: JSON-LD Playbook.