Structured data & rich results checker

This free tool fetches any public page, pulls out every block of JSON-LD and detects microdata, and validates each schema item against the properties search engines expect. For each item you get its type, the properties it declares, a list of errors (missing required properties that block rich results) and warnings (missing recommended properties), and the rich result it may be eligible for. It's the fastest way to confirm your schema is present, valid, and complete - and a key step for both Google rich results and AI search citations.

Structured data is how you tell machines exactly what your content means, instead of making them guess from the text. That clarity pays off in two big ways. First, it unlocks rich results - the star ratings, FAQ drop-downs, prices, breadcrumbs, and event details that make your listing stand out and lift click-through rate. Second, and increasingly important, it's a top signal for AI engines: ChatGPT, Perplexity, and Google AI Overviews lean on schema to understand entities and decide whose content to cite.

The catch is that schema is easy to get subtly wrong. A single missing required property - a Product without a name, an Article without a headline, or a JSON syntax error - can silently disqualify the whole rich result. This checker surfaces those issues so you can fix them before they cost you visibility. For the canonical reference, see Google's rich result gallery and schema.org.

Errors come first. An error means a required property is missing or the JSON-LD has a syntax error. Either can disqualify the entire rich result, so fix these before anything else. Warnings come second. A warning means a recommended property is missing - the rich result still works, but it won't be as complete or compelling (for example, a product without an image or rating). Add recommended properties once errors are resolved to maximize how your listing appears.

There are three ways to add structured data - JSON-LD, microdata, and RDFa - but you should standardize on JSON-LD. Google recommends it, it lives in a single <script type="application/ld+json"> block separate from your visible HTML (so it can't break your layout and is easy to template), and it's the cleanest format for AI engines to read. If this checker reports microdata on your site, consider migrating it to JSON-LD. You can generate valid JSON-LD with our schema markup generator.

Google retired its long-running Structured Data Testing Tool, folding general validation into the schema.org validator and moving Google-specific checks into the Rich Results Test. People still search for the old all-in-one checker that simply extracted and validated every schema item on a page. This tool fills that role. Here's how it compares to the official options that remain.