How this validator works
This tool parses your JSON-LD and checks it against Google's documentation for structured data. Unlike syntax-only validators, it also checks whether required fields are present for each schema type, whether dates use ISO 8601 format, whether URLs are valid, and whether nested objects (like author or publisher) have their own required fields.
For even deeper validation — checking your schema against actual page content (e.g., does the price in your Product schema match the price on the page?) — use the Lumina Chrome Extension which cross-references schema data with live page content.
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Frequently asked questions
Validate schemas on every page you visit
Lumina automatically extracts and validates JSON-LD on any page — plus cross-checks schema data against actual page content.
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