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Schema Markup Validator

Extract and validate the structured data on any page: JSON-LD parse errors, schema types found, and missing required properties for rich results. Free, no signup.

What structured data buys you

Schema markup (JSON-LD) tells machines what a page is — an article, a product, an organization, an FAQ — instead of leaving them to infer it. Google uses it for rich results like breadcrumbs, products and reviews; AI assistants lean on it when deciding what to cite. This validator extracts every JSON-LD block and microdata item from a URL, reports JSON parse errors per block (a single stray comma silently kills the whole block), and checks the required properties for common types.

Where to start if you have none

For most small sites the highest-value types are Organization on the homepage, BreadcrumbList on interior pages, and Article/BlogPosting on posts. Skip markup for things your pages don't visibly contain — schema that misrepresents the page is a manual-action risk, not a shortcut. Once markup is in place, a full page check confirms crawlers can see it alongside everything else that matters.

Frequently asked questions

Structured data (usually JSON-LD) that describes what a page is about in a machine-readable way — an article, a product, an FAQ. Search engines use it for rich results, and AI assistants use it to understand and cite your content.

Breadcrumbs, products, reviews, recipes, events, job postings and articles remain live. FAQ rich results were restricted to government and health sites in 2023, and HowTo was retired — but both types still help AI answer engines parse your content.