Structured data check
Check a page's JSON-LD: syntax, types, required fields, and whether it matches the visible content.
What we check
This version parses JSON-LD (the form Google recommends). We would rather skip a check than report something inaccurate.
- Presence — whether the page has any JSON-LD at all
- Syntax — trailing commas, smart quotes, BOM and other common errors, each with a hint
- @context — whether schema.org is declared correctly
- Types — every @type found, flagging ones that produce no rich results
- Required fields — checked against Google's structured data requirements
- Content consistency — whether the Q&A in the markup exists on the page
How it works
Enter a URL
An article or product page with real content works best
Read the data
Every JSON-LD block and the types it declares
Read the findings
Syntax errors, missing fields and mismatches, rated
Other free tools
FAQ
Why does it say “unable to verify consistency”?
Because that page renders its content with JavaScript. We only see the server-returned HTML, so we say we cannot tell — rather than falsely reporting a mismatch.
I do have schema — why does it say none was found?
If it is injected by JavaScript, it will not be in the server-returned HTML. Re-check with browser dev tools or Google's own tool.
Why not check Microdata and RDFa?
JSON-LD is the form Google recommends. Microdata and RDFa are only noted as present, not scored — we would rather not do a check than give an uncertain answer.
Why only one page at a time?
This version checks a single page. Whole-site scanning is part of our paid audit service.
Found structured data problems?
Fixing structured data is one of the highest-return tasks in technical SEO — done well, it earns richer search listings.