breadcrumb-generator（面包屑生成器）

Components: Breadcrumb Navigation

Guides breadcrumb implementation for SEO, UX, and GEO. Breadcrumbs show users their location in the site hierarchy and help search engines understand content taxonomy. Well-implemented breadcrumbs can increase CTR by 20–30%, reduce bounce rates by up to 30%, and strengthen internal linking.

When invoking: On first use, if helpful, open with 1–2 sentences on what this skill covers and why it matters, then provide the main output. On subsequent use or when the user asks to skip, go directly to the main output.

Scope

• Breadcrumb UI: Visual trail (Home > Category > Page)
• BreadcrumbList schema: JSON-LD structured data for rich results
• Placement: Typically below header, above main content

Breadcrumb Types

Default: Use location-based for most sites. Use attribute-based for e-commerce product pages.

Initial Assessment

Check for project context first: If .claude/project-context.md or .cursor/project-context.md exists, read it for site structure and key pages.

Identify:

1. Site structure: Hierarchy depth (e.g., Home > Category > Subcategory > Product)
2. Page types: Blog, e-commerce, docs, etc.
3. Multi-category: Products in multiple categories—need canonical path

Best Practices

Structure & Hierarchy

Schema (BreadcrumbList)

See schema-markup for BreadcrumbList requirements, JSON-LD example, and multiple paths. Schema must match visible breadcrumbs exactly.

Placement & Design

UX & Accessibility

SEO Impact

• Internal linking: Breadcrumbs distribute link equity
• Crawlability: Helps crawlers understand taxonomy
• GEO: BreadcrumbList appears frequently on pages cited by Google AI Mode
• Note: Google removed visual breadcrumbs from mobile SERPs (Jan 2025) to save space, but schema and algorithmic value remain important for crawlers and AI. See serp-features for breadcrumb SERP display.

Implementation

Semantic HTML

<nav aria-label="Breadcrumb">
  <ol itemscope itemtype="https://schema.org/BreadcrumbList">
    <li itemprop="itemListElement" itemscope itemtype="https://schema.org/ListItem">
      <a itemprop="item" href="https://example.com/"><span itemprop="name">Home</span></a>
      <meta itemprop="position" content="1" />
    </li>
    <li itemprop="itemListElement" itemscope itemtype="https://schema.org/ListItem">
      <a itemprop="item" href="https://example.com/category/"><span itemprop="name">Category</span></a>
      <meta itemprop="position" content="2" />
    </li>
    <li itemprop="itemListElement" itemscope itemtype="https://schema.org/ListItem" aria-current="page">
      <span itemprop="name">Current Page</span>
      <meta itemprop="position" content="3" />
    </li>
  </ol>
</nav>

Implementation: Generate BreadcrumbList from route segments or page metadata. Ensure item URLs are absolute. Use next-seo BreadcrumbJsonLd or custom component. See schema-markup for JSON-LD structure.

When to Use Breadcrumbs

Skip on flat sites (e.g., single-page, 1–2 level depth).

Deep pages: For 6+ levels, consider omitting middle levels; show only the most important categories to avoid clutter.

Platform Notes

Common Errors

Output Format

• Structure recommendation (levels, labels)
• BreadcrumbList JSON-LD — see schema-markup for structure; with absolute URLs
• HTML structure (semantic, accessible)
• Placement (below header, above main)
• Validation: Rich Results Test, Schema Markup Validator, Search Console enhanced report

Related Skills

• article-page-generator: Article pages use breadcrumbs (Home > Blog > Category > Post)
• schema-markup: BreadcrumbList schema implementation; JSON-LD structure, requirements
• navigation-menu-generator: Header nav; breadcrumbs complement primary nav
• internal-links: Breadcrumbs are internal links; distribute link equity
• site-crawlability: Breadcrumbs help crawlers understand structure
• category-page-generator: Category hierarchy in breadcrumbs
• products-page-generator: Product pages often need breadcrumbs (Category > Product)
• serp-features: Breadcrumb SERP display; rich results