Structured Data Checker — does your page have JSON-LD schema?
Structured data is a machine-readable description of your page that tells engines exactly what your content means — not just what words it contains. This check confirms your page includes structured data, ideally in JSON-LD, the format Google recommends. Without it, engines have to infer meaning from your text alone; with it, you state explicitly that this is an article, this is the author, this is the publish date.
Updated June 2026 · Technical SEO & GEO · Part of Structured Data
Check your structured data
Paste a URL — GEObubbly checks whether your page includes structured data and whether it's in the recommended JSON-LD format.
✓ Free check✓ 1 signal✓ No signup required
In short: At least one JSON-LD block should describe the page. JSON-LD is the cleanest, Google-recommended format — and the layer AI engines lean on to understand and quote you.
What does the structured data check verify?
It checks whether the page includes structured data and what form it takes. Specifically:
Presence — whether any structured data (schema markup) exists on the page at all.
JSON-LD format — whether it uses JSON-LD, the format Google recommends, rather than only older Microdata or RDFa.
Schema.org vocabulary — whether it uses recognised schema.org types that engines understand.
JSON-LD structured data present passes; only Microdata or RDFa (no JSON-LD) is a warning; no structured data at all is a fail.
How is it evaluated, and how is it scored?
GEObubbly scans the page for structured data and checks whether it's provided in JSON-LD. It's a core, scored Structured Data check that runs directly against the page's markup.
Why structured data matters for SEO and GEO
Search and AI engines are good at reading text, but structured data removes the guesswork: it states, in a standard machine-readable vocabulary (schema.org), exactly what your content is — an article with this headline, author and date; a product with this price and rating; an FAQ with these questions and answers. Google strongly recommends JSON-LD, a block of structured data in the page's HTML that's separate from the visible content and easy for engines to parse, over the older inline Microdata and RDFa formats. The most visible payoff is rich results: review stars, FAQ accordions, breadcrumbs and other enhanced listings that make your search result stand out and earn more clicks. For GEO, structured data is even more valuable — it's the machine-readable layer AI engines trust to understand entities and relationships, so marking up your organisation, authors and content helps engines parse and cite you accurately. It must be valid and appropriate to count.
How this check scores
Pass:At least one JSON-LD block is present.
Warning:Only older Microdata/RDFa markup is present (works, but not preferred).
Fail:No structured data at all.
FAQ
Structured data is a standardised, machine-readable description of a page's content, written using the schema.org vocabulary so engines understand exactly what each part means — that this is an article, this is its author, this is a product and its price. JSON-LD (JavaScript Object Notation for Linked Data) is the recommended format for providing it: a self-contained block of structured data placed in the page's HTML, separate from the visible content. Because JSON-LD is easy to add and parse, Google recommends it over the older inline Microdata and RDFa approaches that mix markup into the HTML.