Why this matters
Breadcrumbs improve orientation for humans and provide clearer structure for search engines, especially when your site has categories and topic clusters.
Setup
Start with a simple UI breadcrumb component before adding structured data.
<nav aria-label="Breadcrumb">
<a href="/">Home</a> / <a href="/blog/">Blog</a>
</nav>Implementation notes
Use the post category to build the last ancestor link. This pattern works well with Astro Table of Contents for Long Posts.
Final checklist
- Home and archive are always linked
- Category slug stays stable
- Breadcrumbs render on every post page