Free Structured Data Checker
Free structured data checker. Enter any page address to list its JSON-LD, flag invalid code, and show which Product, Organization and FAQ fields are missing. free, with no fees.
- ✓ 100% free
- ✓ Email and phone to start
- ✓ No fees, ever
- ✓ Nothing to install
How it works
- Enter a pageA product page works best.
- Read the resultSee each structured data item, whether it is complete and what is missing.
- Fix and re-checkAdd the missing fields and run it again.
Questions, answered
How do I check if my website has schema markup?
Enter a page address above. The checker lists every JSON-LD block it finds, the type of each, and what is missing.
What does a complete Product schema need?
A name, an image, a price, a currency and availability, ideally with a brand, a SKU or GTIN, a description and ratings that exist on the page.
Why is my schema marked invalid?
One typo, such as a trailing comma, makes the whole block unreadable. The checker shows which block failed to parse.
Does valid schema guarantee rich results?
No. It makes your pages eligible and readable. Whether search engines show rich results is their decision.
Is this tool really free? Do I need to register?
The tools are free, with no account, no password and no fees. Before a tool runs we ask for your email and phone number, so we can send your results and follow up if you ask for help. Nothing is uploaded from your computer.