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Optimizing Internal Linking

Redaktion ·

Optimizing Internal Linking

Internal links are the most underrated SEO tool, because they’re the one ranking signal you control 100% yourself. Backlinks you have to earn. Content you have to create. But how authority flows through your own site — that you define with every single internal link. Ignore it, and audits routinely show you waste a good 40% of your internal link value on poorly connected or orphaned pages (source: common audit figures, as of 2026).

This article walks you through the mechanics: how internal linking distributes link equity, why click depth matters, how anchor text supplies context, and how to deliberately strengthen your most important target pages — instead of just navigating.

Two things happen with every internal link at once, and both matter for rankings.

First, they distribute link equity. Every page carries a certain amount of authority — from backlinks, from its position in the structure, from the homepage, which is almost always the most linked-to. That authority flows on through internal links. When a strong page links to a weaker one, it passes on a share of its equity. That’s why a fresh money page linked from the homepage and three topically relevant articles ranks faster and better than one stranded in the fifth directory level.

Second, they define topical importance — from the site’s own perspective. Google reads your internal link structure as a self-assessment: which pages do you consider important? A page that a hundred others link to signals “central.” A page nobody links to signals “afterthought” — no matter how good its content.

These two effects are why internal linking isn’t a housekeeping topic but a strategic one: you steer where authority and attention flow.

Click depth — keep important pages shallow

Click depth is the number of clicks from the homepage to any given page. It isn’t an official ranking signal, but it correlates strongly with crawl frequency and likelihood of indexing.

The established rule of thumb: important pages ≤ 3 clicks from the homepage, never deeper than 5. A page within two clicks gets crawled more often and rated more highly than one five clicks deep — simply because Google treats it as more central and steers crawl budget there preferentially.

The practical model behind it is a pyramid: homepage on top, hub or pillar pages below, supporting detail pages below that. Money pages and pillar content belong on the upper floor — close to the homepage, well connected. Seasonal one-off articles or long-tail pages may sit deeper.

Anchor text — descriptive, not “click here”

The anchor text — the visible, linked text — gives Google context about what the target page is about. Google says so explicitly: good anchor text is “descriptive, reasonably concise, and relevant to the page that it’s on and to the page it links to” (source: Google Search Central, links-crawlable).

Concretely that means:

  • Descriptive instead of generic. Google names “click here,” “read more,” and “website” explicitly as bad examples. Instead of “learn more,” prefer “list of cheese types” or “optimizing internal linking” — the text should name the link target.
  • Vary, don’t repeat the same keyword anchor mechanically. Using exact-match “SEO consulting” a hundred times as your anchor looks manipulative. Natural variation (“SEO consulting,” “help with search engine optimization,” “our SEO services”) reads more authentically and is more robust.
  • For image links, the alt attribute counts. Google uses a linked image’s alt text as the anchor text. An image link without alt gives Google zero context.

Not every internal link weighs the same. Two categories matter:

Navigation and footer links appear identically on every page — main menu, footer, sidebar. They’re important for structure and reachability, but because they show up everywhere unchanged, their individual weight is small.

Contextual links sit in the middle of running text, surrounded by topically relevant content. These carry the most SEO value precisely because the surrounding text gives Google extra relevance context. A link from a paragraph about load times to your performance service page says more than the same link in the footer.

The practical rule that follows: link important target pages contextually from topically relevant source pages. Not randomly, not from every article — but where the link genuinely fits the content.

Hunting down orphan pages

An orphan page is a page without a single internal link. It may exist in the sitemap, but no path within the site leads to it. Google is unambiguous: “Every page you care about should have a link from at least one other page on your site.” Without it, the page gets crawled poorly, rated poorly — and often shows up in Search Console as “Discovered, currently not indexed.”

Here’s how to find them:

  • Google Search Console — Links report. Shows internal links per page. Pages that appear here with zero or conspicuously few internal links are candidates.
  • Crawlers (Screaming Frog, Sitebulb, and the like). A crawl matches all found URLs against the sitemap. Anything in the sitemap that never appears linked in the crawl is orphaned.

The fix is simple: place a contextual link from a topically relevant, well-connected page to the orphan. It’s back in the flow.

Distinction — siloing is not the same thing

Often mentioned in the same breath but a topic of its own: siloing is a specific architecture strategy where you deliberately separate topic areas and keep links primarily within a silo. Internal linking in the sense of this article is broader — it covers any form of internal links, including across topic boundaries, and foregrounds relevance and equity flow rather than strict isolation. If you work with topic clusters, the matching structural logic is in the topic cluster content strategy.

Crawlable first, then optimized

One technical caveat above all: Google can only make use of an internal link if it’s a real <a> element with an href attribute. Links that only work via a JavaScript onclick or href="javascript:..." are not crawled reliably. So before you polish anchor text and steer equity, make sure your links exist as clean <a href="..."> elements in the HTML at all.

FAQ

How many internal links should a page have? There’s no hard number, but as orientation, roughly 2–5 contextual links per 1,000 words and under ~150 links total per page are reasonable. Relevance matters more than quantity: better a few links that genuinely fit than a link avalanche that Google devalues much like keyword stuffing.

Does too much internal linking hurt? Yes, in two ways. First, link equity dilutes the more links leave a page — each one gets less. Second, a page with hundreds of uniform keyword anchors looks unnatural. Link deliberately and contextually, not maximally.

What’s the difference between internal and external links? Internal links connect pages within the same domain and distribute equity within your site — you control them completely. External links (backlinks) come from other domains and bring authority in from outside — those you have to earn. Both count, but only the internal ones are under your direct control.

How do I find orphan pages without an expensive tool? The Links report in Google Search Console is enough to start: pages with zero internal links are suspects. For a complete match you need a crawler that holds your sitemap against the actually linked URLs — Screaming Frog’s free tier covers smaller sites.

Why are contextual links more valuable than footer links? Because the surrounding text gives Google relevance context. A link in the middle of a paragraph about a topic signals topical kinship between source and target page. Footer and menu links appear identically on every page, so they’re interchangeable and carry correspondingly less individual weight.

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