AI SEO Glossary
What is Internal Linking?
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TL;DR - Internal linking is the practice of linking between pages on the same site to distribute authority, signal which pages matter most, and give crawlers reliable paths to every URL worth indexing. Unlike backlinks, internal links are fully under the site's control, which makes them the cheapest large lever in technical SEO: anchor text tells engines what the target page is about, link placement signals importance, and link depth determines how much crawl attention a page receives. Orphan pages - reachable by no internal link - are effectively invisible.
Internal linking in practice
Links that lead shoppers and crawlers onward
Internal links connect your guides, categories and products. They help shoppers find the next step and tell search engines which pages matter most, so authority flows to the pages that sell.
- ›Guides linking to the products they mention
- ›Descriptive link text, not click here
- ›Key categories never more than a few clicks deep
Definition & scope
On catalogs, internal linking is mostly architectural: category-to-product paths, breadcrumbs, related-product modules, and editorial content linking into the commercial pages it supports. The pattern to avoid is the silo where blog content never links to the money pages, or navigation so flat that everything competes equally.
Internal links are also how content clusters function - supporting pages link up to the pillar and across to each other, making the topic's structure legible to engines and LLM retrieval alike.
Related terms
- Content Clusters - clusters are wired together with internal links.
- Crawl Budget - link depth steers crawler attention.
Related services
- eCommerce SEO Audit - link-architecture review and orphan detection.