Link Equity: How Authority Flows Through Internal Links

Link equity (the concept behind the older slang "link juice") is the ranking value a page passes to other pages through its links. Every page accumulates equity from the links pointing at it, and redistributes a share of that equity through the links it contains. External links decide how much equity enters your site; internal links decide where it goes. That second part is entirely under your control, and most sites squander it.

Where the idea comes from: PageRank in plain words

PageRank, the algorithm Google was founded on, models a random surfer: someone who lands on a page, clicks a random link on it, clicks a random link on the next page, and so on, occasionally getting bored and jumping to a random page instead. A page's PageRank is the probability that the surfer is on that page at any given moment.

Three consequences fall straight out of the model:

1. Links are endorsements. A link from page A makes the surfer more likely to reach page B, so B's score rises.
2. Equity is proportional to the source's own equity. A click from a heavily-visited page delivers more probability than a click from an obscure one. Links from strong pages are worth more.
3. Equity splits across a page's outgoing links. A page with 10 links sends the surfer down each with 10% probability; with 100 links, 1% each. More outlinks means a thinner slice per link.

Google retired the public Toolbar PageRank score in 2016, and the live algorithm has evolved far beyond the 1998 paper: Google has described a "reasonable surfer" model that weights links by how likely they are to actually be clicked, rather than treating all links equally. But the core mechanics (equity flows through links, splits among them, and compounds through strong pages) remain the working mental model, and it's the model every crawl-based audit tool approximates.

Internal links are a redistribution system

External links you mostly earn. Internal links you simply write. That asymmetry is the entire opportunity: whatever equity your domain has accumulated, your internal link graph decides which pages receive it.

Picture a blog where a three-year-old post about "choosing a standing desk" has collected links from a dozen other sites. That post holds real equity. If it links out only to your homepage and a category page, the equity pools in navigational pages that were never going to rank for anything specific. Add one contextual link from that post to your newer "standing desk mat comparison" page, and you've routed hard-earned external equity directly to a page that can convert it into rankings.

This is also why orphan pages, pages with no internal links pointing at them, are such a pure loss: whatever their content quality, the random surfer essentially never arrives, so they sit at the bottom of the probability distribution regardless of merit.

The dilution myths

"Link juice" thinking spawned a folklore of hoarding. Most of it is wrong or outdated.

Myth: every outbound link "leaks" value you should conserve. The split-across-outlinks math is real, but the conclusion doesn't follow. A page isn't a battery you drain; it's a junction. Removing useful links to protect equity makes the page worse for users and cuts off the flow that makes the rest of your site rank. The sites that win at internal linking are generous linkers with deliberate targets, not hoarders.

Myth: nofollow your unimportant internal links to sculpt flow. This died in 2009, when Google changed how nofollow is handled: the equity assigned to a nofollowed link evaporates rather than being redistributed to the followed links. Sculpting with nofollow doesn't concentrate equity; it burns it. The details are worth knowing and are covered in the internal linking guide.

Myth: more links on a page always means meaningfully less per link. Directionally true, practically overrated. The difference between 8 and 12 contextual links on a 2,000-word page is noise. The differences that matter are structural: which pages link to which, from what depth, with what anchors. Obsessing over per-page link counts while your money pages sit five clicks from the homepage is straining a gnat and swallowing a camel.

What's real: equity concentrates where link paths converge, decays with click depth, and pools uselessly in pages that have inlinks but no meaningful outlinks (dead-end "about" pages that a hundred pages link to are a genuine, boring equity sink).

Why navigation links pass less useful signal

A link in your header appears on every page of the site. Two things follow.

First, under a reasonable-surfer view, sitewide boilerplate links are the least "clicked-in-context" links on the page; they're furniture. Search engines are demonstrably good at recognizing boilerplate (navigation, footers, sidebars) and treating it differently from editorial content. A contextual link (placed mid-prose, surrounded by topically relevant sentences, carrying a descriptive anchor) is a far richer signal: it says this page, discussing this topic, found that page relevant enough to cite at this exact point.

Second, nav links carry no anchor diversity and no topical context. Your footer link to /pricing says "Pricing" ten thousand times from ten thousand unrelated pages. One in-paragraph link from a relevant comparison post tells Google more about what the pricing page is for.

This distinction is baked into how LinkAgent models your site: when it crawls and builds the link graph, navigation, header, footer, and sidebar links are deliberately not counted. Only in-prose contextual links register. A page reachable solely from your mega-menu shows up as what it functionally is for equity purposes: a contextual orphan.

Practical moves that actually shift equity

1. Find your strongest pages and make them give. Pull your top pages by external links (Search Console → Links, or any backlink index). Open each one and count its contextual outlinks to priority pages. These are your reservoirs; a link added here is worth more than a link added anywhere else on the site.

2. Route equity toward money pages through relevant intermediaries. Strong blog post → supporting cluster page → commercial page is often more natural (and better-anchored) than forcing a commercial link into every post. Equity compounds along paths.

3. Reduce click depth for priority targets. Each click from the homepage is a decay step. If a revenue page sits 5 clicks deep, no amount of anchor polish compensates. Restructuring hub pages and adding cross-links (the models are compared in internal link structure patterns that work) usually moves depth more than any individual link.

4. Fix dead ends and orphans. Pages with inbound equity and zero contextual outlinks waste what they receive; pages with zero contextual inlinks receive nothing. Both show up mechanically in a crawl.

5. Prune truly pointless links, don't hoard. Tag pages with two posts, archive pages by month: links to near-empty targets split equity toward nothing. Consolidate the targets rather than nofollowing the links.

6. Audit on a schedule, not once. Every published post shifts the graph. Monthly is enough for most sites.

Measuring it: proxies, not PageRank

You can't see PageRank, but you can measure the internal quantities that drive it. A crawl gives you, per page: inbound in-text link count, click depth from the homepage, and which strong pages do or don't link to it. LinkAgent computes exactly these: it crawls via sitemap and internal links, counts only contextual in-prose links, flags orphans, and scores every candidate link on the source page's depth and the target page's link need, so proposed links flow from equity-rich pages to equity-starved ones by construction. Running an internal link audit is the fastest way to see where your site's equity is actually pooling versus where you assumed it was.

The pattern the audit almost always reveals: a handful of old pages hold most of the external equity, the pages you currently care about receive almost none of it internally, and a few dozen deliberate contextual links would rebalance the whole graph. Link equity isn't mystical fluid; it's routing, and you own the router.