Internal Linking Strategy: Anchor Text Distribution and Link Equity Flow

Internal Links Are Your Most Controllable Ranking Factor

You can't control who links to you. You can't control how Google's algorithm weighs different signals. But you can control every single internal link on your site — and that's a bigger deal than most people realize.

Internal links do three things: they help users find content, they help search engine crawlers discover pages, and they distribute link equity (ranking power) across your site. That third function — equity distribution — is where strategic internal linking separates good SEO from great SEO.

How Link Equity Flows Internally

The old PageRank model (which is still conceptually accurate, even if the specific formula has evolved) works like this: a page with high authority passes some of that authority through its outbound links. The more links on a page, the less equity each individual link passes.

This means:

Your homepage typically has the most authority (most external links point there). Links from the homepage pass the most equity.
A page that links to 10 other pages passes more equity per link than a page linking to 100.
Pages buried deep in the site architecture (requiring 4+ clicks from the homepage) receive less equity than pages closer to the top.
Orphan pages (no internal links pointing to them) receive essentially zero internal equity, regardless of how good the content is.

Anchor Text Strategy

Anchor text — the clickable text of a link — gives Google context about the linked page. For internal links, you have complete control over anchor text, which makes it a powerful optimization lever.

Do's

Use descriptive anchor text that includes relevant keywords for the target page
Vary your anchor text — don't use the exact same phrase every time you link to a page
Make anchors natural within the sentence context

Don'ts

Don't use "click here" or "read more" — these provide zero topical context
Don't over-optimize with exact-match keyword anchors on every internal link — it looks manipulative
Don't use the same anchor text to link to different pages — it creates ambiguity about which page should rank for that term

A natural anchor text distribution might look like: 30% exact keyword match, 40% partial keyword match or natural variation, 20% branded or descriptive, 10% generic ("this guide," "the article," etc.). These aren't hard rules — the point is variety.

Auditing Your Internal Link Structure

Here's my audit process, which I run quarterly for most sites:

Step 1: Crawl and Map

Run a full crawl with Screaming Frog and export the internal link data. Key metrics to extract:

Inlinks count per page — how many internal links point to each URL
Link depth — how many clicks from the homepage
Anchor text distribution — what text is used to link to each page

Step 2: Find Orphan Pages

Compare your sitemap URLs against pages found during the crawl. Any URL in the sitemap but not found during crawling is an orphan — it exists but isn't reachable through internal links. These pages will underperform regardless of content quality.

Fix: add contextual links from relevant pages. If a page doesn't logically fit anywhere in your internal link structure, question whether it should exist at all.

Step 3: Identify High-Value Pages with Low Internal Links

Cross-reference your top organic landing pages with their internal link counts. If a page drives significant organic traffic but only has 2-3 internal links pointing to it, adding more will likely boost its performance. I've seen ranking improvements simply from increasing internal links to an under-supported page from 3 to 10-15.

Step 4: Check Link Depth

Your most important pages should be reachable within 3 clicks from the homepage. Four clicks is acceptable for deeper content. Anything beyond that is too deep — crawlers will find it less frequently and it'll receive less equity.

Common culprits for excessive depth:

Blog archives where old posts are only accessible by paginating through dozens of pages
Category structures with too many nesting levels
Product catalogs where items are only linked from subcategory pages

Practical Implementation Tactics

Contextual Links in Content

When you publish a new article, add 3-5 internal links to existing relevant content. Equally important: go back to 3-5 existing articles and add links TO the new page. This two-way linking is what most people forget — they link outward from new content but don't update old content to link back.

Hub Pages

Create hub pages that organize content by topic and link to every relevant article. These serve as internal link aggregators and entry points for both users and crawlers. A well-maintained hub page can significantly improve the indexation and ranking of the pages it links to.

Breadcrumb Navigation

Breadcrumbs aren't just a user experience feature — they create a structured internal link path from every page back to its parent category and ultimately the homepage. Use BreadcrumbList schema markup to help Google understand the hierarchy.

Tools for Internal Link Analysis

Screaming Frog — the standard for crawl-based internal link analysis. The "Inlinks" tab and the "Link Score" feature are particularly useful.
Ahrefs Site Audit — provides internal link opportunity suggestions and orphan page detection
Google Search Console — the "Links" report shows your most linked internal pages. Useful for a quick sanity check.
InLinks — specialized tool for entity-based internal linking suggestions (uses NLP to find topical connections between pages)

Internal linking strategy isn't a set-it-and-forget-it task. Every new page changes the link graph, every deleted page creates potential orphans, and every content update is an opportunity to strengthen connections. Build it into your content workflow so every publish includes an internal linking step, and audit the full structure quarterly.