SEO Tools

Schema Markup Checker

Use Schema Markup Checker to extract and display JSON-LD schema markup from page HTML. The tool produces schema type summary and raw block viewer. Only JSON-LD schemas embedded in script tags are checked.

Free SEO analysis No sign-up required Instant results

How to use it

  1. 1 Paste the HTML source of a page into the input panel.
  2. 2 Click Check HTML to run the analysis in your browser.
  3. 3 Review the report sections.
  4. 4 Export as JSON or copy the summary.

Use cases

  • Audit on-page SEO before publishing or updating a page
  • Check social sharing metadata before a campaign
  • Verify heading structure and schema markup after a CMS change

Limitations

  • JavaScript-rendered content is not evaluated — only the static HTML response is analysed.
  • Paste the raw HTML source. Relative paths may not resolve correctly without the original base URL.
  • Only JSON-LD schemas embedded in script tags are checked.

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FAQ

Does Schema Markup Checker upload my data?

Your file or text is processed in your browser and is not uploaded.

What does Schema Markup Checker check?

It produces schema type summary and raw block viewer. Only JSON-LD schemas embedded in script tags are checked.

Does this replace Google Search Console?

No. This tool reads static HTML and provides a quick informational check. For authoritative indexing data and crawl reports, use Google Search Console.