Free · reads the live site · no signup
Schema analyzer
Pull every JSON-LD block on a page, list the types, and mark the fields those types are missing.
Score: /100
for
for
How it works
Which structured data is checked?
The analyzer reads application/ld+json blocks. It reports each @type and, for Article, Product, FAQPage, Organization, and WebSite, the recommended fields that are empty or missing. Invalid JSON is reported as its own finding.
Questions people ask
Is this tool free?
Yes. It checks the live URL you enter, with no signup, and nothing you submit is stored.
Does it run JavaScript like a browser?
No. It reads the HTML the server returns, the same way a search or AI crawler does. Content that appears only after client-side JavaScript runs will not be seen — which is exactly what you want to test for.
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