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FREE WEBSITE CHECK · NO SIGNUP

Schema markup checker

Find malformed JSON-LD and see the schema types on each page.

Up to 25 HTML pages. Public pages only; robots.txt respected.

What this check measures

Inspect JSON-LD syntax and schema types across your website. Locate malformed structured data and export the affected pages for repair.

Checks JSON syntax and detected types only. Required properties, vocabulary correctness and rich-result eligibility need further validation.