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Structured Data

Schema Markup SEO Guide: Complete Guide for 2026

Learn structured data, JSON-LD, schema types, implementation best practices and common structured data mistakes.

Published August 2026
Updated August 2026
12 min read
Chapter 11

Schema Markup and Structured Data

Structured data provides machine-readable information about the content and entities represented on a page.

JSON-LD is commonly used to implement structured data because it separates the structured information from the visible content of the page.

Example

A website can use structured data to communicate information about an organization, article, product, event, breadcrumb or other supported entity.

Example JSON-LD

{
  "@context": "https://schema.org",
  "@type": "Organization",
  "name": "SEOHACK",
  "url": "https://seohack.ai"
}

Common Structured Data Types

TypeTypical Use
OrganizationDescribe a business or organization.
ArticleDescribe editorial content.
BreadcrumbListDescribe breadcrumb navigation.
ProductDescribe product information.
LocalBusinessDescribe a local business.

Structured Data Checklist

Schema matches the visible page content
Correct schema type is selected
Required properties are provided where applicable
JSON-LD syntax is valid
URLs are correct
Organization information is consistent
Breadcrumb structure matches the visible breadcrumbs
Structured data is not misleading
💡

SEOHACK Tip

Structured data should describe what users can actually see on the page. Don't add schema simply because a property exists if the underlying information isn't genuinely represented.

Related Technical SEO Guides

Continue learning with these related Technical SEO resources.

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SEOHACK Editorial Team

The SEOHACK Editorial Team creates practical, research-driven content focused on Technical SEO, AI SEO, Generative Engine Optimization (GEO), Answer Engine Optimization (AEO), Local SEO, Performance Optimization and website growth.

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