Which schema format does Google prefer?

JSON-LD, explicitly. It is easier to maintain than microdata and can live anywhere in the HTML.

Does schema markup improve rankings?

It does not raise position directly. It unlocks rich results, which raise click-through, and it makes your content legible to AI assistants that cite sources.

Why does my valid schema show no rich result?

Eligibility is not a guarantee. Google renders rich results selectively, and markup must match visible page content to qualify at all.

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Schema markup checker

Put in a URL. The tool finds every JSON-LD block on the page, checks the JSON is valid, lists the schema types it declares, and points out missing fields.

Fetched live, exactly as a crawler receives it.

Which schema types matter

Google reads JSON-LD anywhere in the page, but only some types change how the result looks: Article, Product, FAQPage, HowTo, Organization, BreadcrumbList, Event, Recipe and JobPosting. The rest is still useful because it helps machines, including AI assistants, understand the page.

Common mistakes

Invalid JSON. One trailing comma silently kills the whole block.
Missing @context, or required type fields (a Product without offers, an Article without headline).
Markup that describes content which is not actually visible on the page. Google can penalise this.

Schema markup checker

Which schema types matter

Common mistakes

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