YettyOpen Beta
Free tool

Structured data
grader

JSON-LD is how search engines and AI assistants learn facts about you - and one missing comma silently voids a whole block. Type your address and get every block fetched, parsed, graded and gap-filled. We fetch your page securely - nothing else leaves your browser.

Free, no signup We fetch your page securely - nothing else leaves your browser Copyable starter snippet for every gap
Grade any page

Fetch. Parse. Patch the gaps.

Or paste your page HTML manually
100% private - the HTML never leaves your browser.
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JSON-LD blocks found

Coverage checklist

Never hand-write JSON again?

Yetty serves valid structured data on every page automatically - organization, pages, breadcrumbs - generated from your real content.

What it grades

The six types search
and AI look for

Organization / WebSite

Who you are: name, logo, links. The anchor every other fact hangs off - and what AI cites you by.

WebPage / Article

What this page is - a page, a post, a guide - with headline and dates machines can trust.

BreadcrumbList

Where the page sits in your site - Google shows it as the neat path under your result.

FAQPage

Your questions and answers as data - eligible for rich results, and lifted directly into AI answers.

LocalBusiness

Address, hours, phone - feeds maps, "near me" searches and every assistant asked "is it open now?".

Product

Price, availability, reviews - what makes your listing show rich details instead of a bare link.

Quick answers

People also ask

How do I check if my structured data is valid?

Enter your page address into this grader (or paste the HTML): it extracts every JSON-LD script block, parses it, and points at the exact position of any syntax error. A single missing comma silently voids a whole block - search engines and AI assistants just skip it without telling you, which is why broken schema is so common.

What schema types should a small business website have?

Start with four: Organization or WebSite (who you are), WebPage or Article on each page (what this page is), BreadcrumbList (where the page sits), and LocalBusiness if you have a physical location - it feeds your hours and address to maps and "near me" searches. Add FAQPage and Product where they genuinely apply.

Does structured data help with AI search?

Yes. JSON-LD gives ChatGPT, Perplexity and Google facts as data instead of prose to guess from: your name, type, address, prices, questions and answers. Pages with clean structured data get summarised more accurately and cited with the right details.

More free tools: FAQ schema builder · Business hours schema · All free tools
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Your turn

Bring the site you already have.

Or let every page grade itself.

Yetty writes valid structured data for every page automatically - and keeps it in sync as your content changes.