Should you limit the number of outgoing links to protect your PageRank?

How is PageRank actually distributed among the links on a page?

The distribution model of PageRank works according to a simple mathematical rule: the authority capital of a page is divided evenly among all its outgoing links. If a page has a PageRank of 100 and contains 10 links, each link theoretically receives 10 units of PageRank.

But when that same page has 100 links, each link only receives one unit. The dilution is proportional to the number of links present, regardless of whether they are internal, external, or even nofollow in certain historical interpretations of the model.

Why does Google maintain this dilution system?

This mechanism forces webmasters to make editorial choices. Google wants every link to be an intentional recommendation, not a decorative or automated element. The more links you place, the less each one counts individually.

This logic creates a natural balance: sites that multiply links indiscriminately lose their ability to transmit authority. Sites that strategically structure their links maximize their impact on crawling and the ranking of their target pages.

What is the difference between internal and external links in this mechanism?

Google's statement does not explicitly distinguish between the two types. Theoretically, PageRank distributes evenly whether it is an internal link to another page on your site or an external link to a third party.

In practice, this means that an overloaded navigation or a footer with 50 links dilutes your authority just as much as a page filled with external links. Internal linking is also subject to this rule: each link counts in the total calculation.

• The PageRank of a page is evenly divided among all its outgoing links, without exception
• The more links you add, the less each individual link transmits authority
• Internal and external links are treated equivalently in this distribution
• A strategically placed link on a page with few links will have a much greater impact than the same link buried among 100 others
• Dilution is not a penalty; it's a mathematical consequence of Google's graph model

Does this statement align with the on-the-ground observations of SEOs?

Yes, and it is one of the few statements from Google that perfectly aligns with empirical tests conducted over the years. Internal linking audits consistently show that pages with fewer outgoing links transmit more authority per link.

It's regularly observed that a strategic page that goes from 80 links to 30 links after optimization sees its target pages rise in ranking, without any other changes. The correlation is strong. This is not just theory: it's an actionable lever.

What nuances should be added to this rule?

The first nuance: Google gives no quantifiable threshold. How many links is “excessive”? 50? 100? 200? The wording remains vague. [To be verified]: no official data specifies from what number dilution becomes really problematic for ranking.

The second nuance: the context of the page matters. An editorial hub page can legitimately have 60 links if justified by its content. A product page with 60 links makes no sense. Google also evaluates editorial coherence, not just raw numbers.

When does this rule not really apply?

For pure navigation pages (categories, archives, tags), the number of links is structurally high, and Google accepts this. These pages serve to distribute authority; it's their function. Optimizing their number of links would have a limited impact.

Another case: footers and global menus. They appear on every page of the site, so their dilution is uniform. Reducing their number of links slightly improves transmission but does not fundamentally change the internal hierarchy. The real lever is the main content of each page.

What concrete steps should you take to limit PageRank dilution?

Start with an audit of the average number of links by page type. Extract the number of outgoing links per page using Screaming Frog or another crawler. Identify pages that exceed 100 links: these are your priorities.

Next, segment the links by real utility. Ask yourself for each link: does it add value to the user or to crawling? If the answer is no, remove it or make it nofollow (even if nofollow hasn’t recovered lost PageRank in years, it clarifies your editorial intent).

What mistakes should be avoided when optimizing the number of links?

A common mistake: removing strategic internal links in favor of secondary links. The contextual internal linking to your priority pages should remain untouched. It’s the overloaded footer and automated “related articles” blocks that need to be streamlined.

Another trap: believing that you need to reduce to 10 links per page. A rich editorial page can have 40-50 links if each is justified. The issue lies with automated links that artificially inflate this number without providing value.

How can you verify that the optimization has a measurable effect?

Monitor the evolution of the crawl budget: if Google crawls your site more deeply after reducing the number of links, that’s a positive signal. Also, keep an eye on the ranking rise of the target pages you prioritized in your linking.

Compare before/after on a representative sample of pages. If you go from an average of 120 links to 60 on your category pages and your product listings gain positions within three months, the correlation is strong. Document these changes to adjust your strategy.

• Crawl your site to identify pages with more than 80-100 outgoing links
• Audit each link: is it necessary for the user or for SEO? If not, remove it
• Prioritize contextual internal linking to your strategic pages
• Reduce automated links in footers, sidebars, and “related posts” blocks
• Monitor the evolution of the crawl budget and rankings after optimization
• Document before/after tests to measure the real impact