Structured Data / Schema Checker

What structured data actually does

Structured data (usually written as JSON-LD) is a machine-readable summary of a page's content, sitting invisibly in the page's HTML. It doesn't change what visitors see -- it changes what search engines understand. A page with clear structured data can be understood correctly even when the visible layout is ambiguous.

Why it's worth the effort

Structured data is what unlocks Google's enhanced search results -- star ratings on products, author bylines and dates on articles, FAQ dropdowns, breadcrumb trails, and more. None of these are guaranteed just by adding the markup, but none of them are possible without it either.

What this tool checks

This tool fetches the live page and reads every JSON-LD block it finds, confirms it's valid JSON, and checks whether the properties Google's own guidelines call out as important -- name, image, author, date, and so on -- are actually present for each schema type it detects.

Structured data and trust

Complete, accurate structured data is also a quiet trust signal: it shows a site is maintained with some technical care, not just thrown together. PressCircle verifies every member's domain before their profile goes live -- the same kind of technical diligence this tool is checking for.

Frequently asked questions

What is structured data / schema markup?

It's JSON-LD (or similar) markup embedded in a page's HTML that tells search engines specifically what the page is about -- an article, a product, an FAQ, a local business -- often enabling rich results like star ratings or FAQ dropdowns.

What schema types does this tool check?

It detects whatever JSON-LD is on the page and checks the fields commonly expected for types like Organization, WebSite, Person, Article, Product, FAQPage, BreadcrumbList, and LocalBusiness.

Do I need any technical knowledge to use this?

No -- just paste a URL. The results explain in plain language what was found and what's missing, no code required.