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AI & Structured Data

Schema Markup Checker

Extract every JSON-LD block, list the types, and catch invalid JSON.

Free, no signup. We fetch the page once and read what your server sends back.

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What this checks

Structured data is how a machine reads your page without guessing. It does not lift rankings on its own, but it decides eligibility for rich results and materially improves how reliably AI systems understand what your business does.

  • Every JSON-LD block on the page
  • All schema types declared, including nested ones
  • Blocks that fail to parse as valid JSON

How to act on the result

  • Invalid JSON means the whole block is ignored silently. Nothing warns you.
  • Connect your types with @id references rather than leaving disconnected blocks.
  • Only mark up content that is genuinely on the page. Marking up invisible content is a policy violation.

Frequently asked

Does schema markup improve rankings?

Not directly. It makes pages eligible for rich results, which changes how much space you occupy and how many people click. It also helps AI systems read you accurately.

Which schema types should I use?

Organization or LocalBusiness for the business, Service or Product for what you sell, Article for editorial content, and FAQPage where you have real questions and answers. Beyond that, only what genuinely applies.

What is the difference between JSON-LD and microdata?

Both express the same vocabulary. JSON-LD sits in a script tag separate from your markup, which is why Google recommends it and why it is far easier to maintain.

Can incorrect schema hurt me?

Marking up content that is not visible on the page is a spam policy violation and can trigger a manual action. Invalid JSON is simply ignored.

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