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name: breadcrumb description: "Use when auditing metadata, crawlability, structured data, or indexability related to Implement valid BreadcrumbList schema. Verify the rendered HTML and HTTP response rather than relying only on source files." metadata: category: seo priority: medium difficulty: intermediate estimatedTime: "10" source: frontendchecklist.io url: https://frontendchecklist.io/rules/seo/breadcrumb

Implement valid BreadcrumbList schema

Breadcrumbs help search engines understand your site's structure and often appear in search results, improving navigation and click-through rates.

Quick Reference

• Add BreadcrumbList structured data only when the page has a visible, meaningful breadcrumb trail
• Ensure the breadcrumb path matches the visible trail and the site's logical hierarchy
• Use JSON-LD to mark up each item in the breadcrumb trail correctly

Check

Verify that the page contains valid BreadcrumbList structured data matching the visible breadcrumbs.

Fix

Implement a JSON-LD script that defines each level of the page's hierarchy using ListItem properties.

Explain

Explain how breadcrumb schema replaces URLs in search results with a more readable navigation path.

Code Review

Review metadata generation, rendered HTML, structured data, and response headers related to Implement valid BreadcrumbList schema. Flag exact routes or templates where search-facing output violates the rule, and describe how to verify the final page output.

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For full implementation details, code examples, and framework-specific guidance, see references/rule.md.

Rule page: https://frontendchecklist.io/rules/seo/breadcrumb