SEO Tools

Schema Markup Checker

Extract and analyse structured data markup (JSON-LD, Microdata, RDFa) from any public URL or HTML paste. Validates JSON-LD syntax, identifies schema types, and checks for commonly required fields.

Free SEO analysis No sign-up required Instant results

Validate your structured data & rich results

Fetch any live URL and validate every JSON-LD block — checks rich result eligibility, required/recommended properties, and surfaces conflicts so you can fix them fast.

Never stored JSON-LD validation Rich result eligibility Schema block explorer
Paste HTML Paste page source containing JSON-LD <script> blocks
Input Text Output Report Browser-only No upload by default

Features

  • Extracts JSON-LD scripts, Microdata, and RDFa
  • Validates JSON-LD syntax with parse error details
  • Identifies @type (Article, Product, FAQPage, etc.)
  • Checks commonly required fields per schema type
  • Shows raw markup for inspection
  • Supports both URL and HTML paste input

How to use it

  1. Enter a public URL or paste HTML.
  2. All schema markup is extracted and listed.
  3. Each JSON-LD block is validated for syntax.
  4. Review field coverage for each schema type.

Use cases

  • Auditing rich result eligibility before a content launch
  • Debugging schema markup issues after deployment
  • Checking competitor schema implementations
  • Validating FAQ, Product, or Article schema before publishing

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.
See also

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Questions & answers

Frequently asked

Does this tool validate against Google's rich result requirements?

It checks for commonly required fields per schema type. For definitive validation, use Google Search Console or Google's Rich Results Test.

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.