> ## Documentation Index
> Fetch the complete documentation index at: https://wiki.platelunchcollective.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Link Equity

> Link equity is the value or authority passed from one page to another through hyperlinks — a fundamental concept in PageRank-based SEO.

*Technical implementation* · *Technical SEO*

## Definition

Link equity is the value or authority passed from one page to another through hyperlinks — a fundamental concept in PageRank-based SEO. Pages with high-quality inbound links accumulate more link equity and pass more value when they link out.

## Why It Matters for AI Search

Link equity may contribute to AI citation authority, though its influence is debated — some data suggests domain authority is not a primary factor in AI source credibility assessments, while unlinked brand mentions may correlate more strongly with [AI visibility](https://www.platelunchcollective.com/services/consulting/ai-search-visibility). High link equity on key pages — service pages, entity pages, glossary entries — signals that external sources consider the content authoritative enough to reference. Internal link equity distribution also matters: ensuring that the most important pages for AI citation receive strong internal link support improves their retrieval priority.

## Related Terms

<CardGroup cols={2}>
  <Card title="Backlink" href="/ai-search-glossary/backlink" />

  <Card title="PageRank" href="/ai-search-glossary/pagerank" />

  <Card title="Domain authority" href="/ai-search-glossary/domain-authority" />

  <Card title="Internal linking" href="/ai-search-glossary/internal-linking" />

  <Card title="Site authority" href="/ai-search-glossary/site-authority" />
</CardGroup>

## Relevant Plate Lunch Collective Services

[AI SEO](https://www.platelunchcollective.com/services/ai-seo)