SEO

Schema.org structured data

JSON-LD structured data tells search engines and AI assistants what your page is about. Without it, you're invisible to rich results, knowledge panels, and most AI citations.

Authority: Schema.org / W3C
Version: Latest
Jurisdiction: Global
Source: schema.org
Last reviewed: 2026-04-28
Last verified: pending

What it is

A vocabulary of types (Organization, Article, Product, LocalBusiness, FAQPage, …) embedded as JSON-LD in the page head. Maintained by Schema.org under W3C governance.

Why it matters

Schema is the single highest-leverage SEO change for AI search era. ChatGPT, Perplexity, Gemini, and Google Knowledge Graph all parse it. No schema = no rich snippets and weak AI citation.

Who it applies to

Every public-facing site that wants discoverability.

How WQI scores it

Web Quality Index considers this standard satisfied when at least 1 of the 2 supporting factors pass.

#	Factor	Status
12	Schema.org structured data presence	live
39	Schema.org type validity (parsed JSON-LD)	planned

1 of 2 supporting factors are currently collected. Sites where the remaining 1 haven't been measured will show as partial or unknown on this standard until the data lands.

Related standards

See also: robots/sitemap , OG / Twitter , llms.txt

Other references

guidance Google Search Central — structured data general guidelines
spec JSON-LD 1.1 (W3C Recommendation)
tooling Rich Results Test

Examples

Organization JSON-LD in <head> html

<script type="application/ld+json">
{
  "@context": "https://schema.org",
  "@type": "Organization",
  "name": "Acme Corp",
  "url": "https://www.acme.example",
  "logo": "https://www.acme.example/logo.png",
  "sameAs": [
    "https://www.linkedin.com/company/acme",
    "https://github.com/acme"
  ],
  "contactPoint": {
    "@type": "ContactPoint",
    "contactType": "customer support",
    "email": "support@acme.example"
  }
}
</script>

Drop this in the <head> of your homepage. The Rich Results Test will tell you if Google parses it cleanly.