TL;DR

Internal links connect your own pages together. They help Google find and understand all your content, pass PageRank from strong pages to weaker ones, and keep users navigating your site. Most sites underuse them.

Key Points

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Internal links are one of the few SEO signals you have complete control over — and most sites use them poorly

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[[anchor-text|Anchor text]] in internal links passes relevance signals to the linked page — use descriptive text, not 'click here'

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Orphan pages (pages with no internal links pointing to them) may not be crawled or indexed at all

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Deeply buried pages (requiring 5+ clicks from the homepage) are crawled less frequently and treated as lower priority

How Internal Links Affect Rankings

Internal links transfer link equity between pages within your site, similar to how external backlinks transfer authority between sites^[1]. A well-linked page inherits authority from all pages linking to it. This means you can deliberately pass authority from high-authority pages (your homepage, popular landing pages) to pages that need a ranking boost. The anchor text used in internal links is also a strong relevance signal — linking to your 'keyword research' page with anchor text 'keyword research tools' tells Google that page is about keyword research tools, reinforcing its relevance for those queries. Pages that receive many internal links are treated as more important by Google's crawlers and are crawled more frequently.

Building an Effective Internal Link Structure

Effective internal linking follows predictable patterns^[1]^[2]. Every new piece of content you publish should link to 3–5 related existing pages using descriptive anchor text, and you should go back and add links from existing pages to the new page. Pillar pages should receive links from all related cluster articles; cluster articles should link back to the pillar and to each other where relevant. Your most important pages (high-conversion landing pages, key service pages) should receive internal links from throughout the site. Breadcrumb navigation adds structural internal links automatically. In topic cluster architecture, internal linking is structural — every cluster article links to the pillar; the pillar links back to all clusters. Audit internal links regularly with crawl tools to identify orphan pages and update anchor text on links using generic phrases.

Internal Linking Best Practices

Several practical guidelines maximize internal linking effectiveness^[2]. Use descriptive anchor text — 'how to do keyword research' not 'click here.' Keep click depth shallow — important pages should be reachable within 3 clicks from the homepage. Fix orphan pages immediately — any page with no internal links is invisible to crawlers unless it's in the XML Sitemap. Don't artificially add dozens of links on one page just for SEO — keep links contextually relevant to the content. Avoid Nofollow on internal links — nofollowing internal links disrupts PageRank flow and is rarely appropriate. Link to both topically related content and navigational parent pages. Use the 'related posts' section at the end of articles, but also embed contextual links within the body content — embedded links carry more weight.

SOURCES

Google Search Central — Understand Links

Ahrefs — Internal Links for SEO: An Actionable Guide

Last updated: June 9, 2026

Related Terms

Link Equity

The SEO value and ranking power passed from one page to another through hyperlinks — sometimes called 'link juice' — determining how much of a linking page's authority is transferred to the pages it links to.

Anchor Text

The clickable, visible text of a hyperlink — the words a user sees and clicks to follow a link, which signals to search engines what the destination page is about.

PageRank

Google's original algorithm that assigns a numerical importance score to web pages based on the quantity and quality of links pointing to them, treating each link as a 'vote' of confidence.

Topic Cluster

A content architecture model where a central pillar page on a broad topic is supported by multiple cluster pages covering related sub-topics, all interlinked to demonstrate topical authority.

Put it into practice

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