Guide

What Is Structured Data? Schema Markup for SEO Explained

Structured data helps search engines understand your content using schema.org vocabulary. Learn how JSON-LD markup enables rich results, knowledge panels, and better SEO.

Structured data helps search engines understand your content using schema.org vocabulary. Learn how JSON-LD markup enables rich results, knowledge panels, and better SEO.

Key Takeaways

  • Structured data (JSON-LD) tells search engines what your content means — not just what it says.
  • Enables rich results: star ratings, FAQ dropdowns, product prices, breadcrumbs in Google SERP.
  • Google recommends JSON-LD format — a script block in <head> separate from visible HTML.
  • Start with: Article, FAQPage, Product, BreadcrumbList, and Organization schema types.

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Structured data is a standardized format for providing information about a page and classifying its content. Using vocabularies like schema.org, structured data helps search engines understand what your content is about — not just what it says.

When implemented correctly, structured data can enable rich results in Google Search: star ratings, FAQ dropdowns, pricing information, breadcrumbs, and more.


How Structured Data Works

Without Structured Data

Google sees your page content as text and infers meaning:

"This product costs $99.99 and has a 4.8 rating from 127 reviews"

Google has to figure out that this is a product with a price and reviews.

With Structured Data

You explicitly tell Google what your content represents:

{
  "@type": "Product",
  "name": "Widget Pro",
  "offers": {
    "price": "99.99",
    "priceCurrency": "USD"
  },
  "aggregateRating": {
    "ratingValue": "4.8",
    "reviewCount": "127"
  }
}

Now Google knows exactly what everything means and can display it as a rich result.


Formats for Structured Data

FormatDescriptionGoogle's Recommendation
JSON-LDScript block in HTMLRecommended
MicrodataInline HTML attributesSupported
RDFaInline HTML attributesSupported

JSON-LD is the recommended format because:


Common Schema Types

Organization

Describes your company for knowledge panels and branded search.

WebSite

Describes your website, can enable the sitelinks search box.

Article / BlogPosting

Enables article rich results with author, date, and image.

Product

Enables product rich results with price, availability, and reviews.

FAQPage

Enables FAQ dropdowns directly in search results, taking up more SERP real estate.

Shows page hierarchy in search results instead of the URL.

LocalBusiness

Enables local business information in search and maps.

HowTo

Enables step-by-step instructions in search results.


Rich Results Enabled by Structured Data


Best Practices

Accuracy

Structured data must accurately reflect visible page content. Don't mark up content that isn't on the page.

Completeness

Include all required properties and as many recommended properties as possible. More complete markup gets richer results.

Testing

Always validate your structured data:

Maintenance

Keep structured data updated when content changes. Outdated prices, ratings, or availability can lead to manual actions.


Start with these 4 schema types

For most websites: Article (blog posts, guides), FAQPage (Q&A sections), BreadcrumbList (navigation), Organization (homepage). Add Product for e-commerce and LocalBusiness for local SEO. Use Google's Rich Results Test to validate.

How Moydus Implements Structured Data

At Moydus, every page type has comprehensive schema markup:

All schemas use @id references for proper entity graph linking. Contact us about implementing structured data for your site.


Frequently Asked Questions


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