Free tool

Schema Markup Checker

Paste any URL to see every structured-data type on the page, catch missing recommended properties, and spot invalid JSON-LD before Google does.

Try an example:

What it checks

Every type, even nested

Flattens @graph and recurses into nested objects, so the author Person or a product's Offer show up as their own entries, not buried inside the parent.

Missing-property warnings

Checks recommended properties for common types (Article, Product, FAQPage, Person, LocalBusiness, Review…) and flags what's absent.

Invalid-JSON detection

A single malformed JSON-LD block is silently ignored by search engines. We parse each one and mark what won't parse.

Safe & private

Only fetches public http(s) pages, blocks internal addresses, caps size and redirects, and stores nothing you check.

Questions, answered

Is the schema checker free?

Yes — no signup, no credits, no daily limit. It's the same tool we use to audit our own pages.

How is it different from Google's Rich Results Test?

Google's test focuses on specific rich-result features. Ours gives a fast, complete inventory of every schema type on the page — including nested entities — plus missing-property warnings, with no login. Confirm final rich-result eligibility in Google's own test.

Does it validate nested schema like author?

Yes — that's the point. It recurses into nested objects, so the author Person inside an article, or an Offer inside a product, appears as its own entry.

Does schema help me rank in AI search?

Not directly. Treat schema as a Google rich-results and entity-clarity play. AI visibility is a separate job.

Clean markup is half the job. Authority is the other half.

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