Internal Linking: The Strategy That Boosts Your Pages
7 min
Internal linking distributes your site's authority toward your key pages, speeds up Googlebot's crawl, and improves user experience. Build a thematic silo architecture with pillar pages well connected to satellite content.
Internal linking is often the most underused lever in on-site SEO. It costs nothing to implement and can boost strategic pages within weeks, without waiting for new backlinks.
How internal links transfer authority
Each page on your site has an authority capital (internal PageRank) that it redistributes through its outbound links. A home page with many external backlinks passes a fraction of its authority to the pages it links to.
By strategically placing internal links from your strongest pages toward your priority pages, you accelerate their rise in rankings without any external action.
Silo architecture: the method
A thematic silo groups a pillar page (the central, exhaustive content) and several satellite pages (more specific related topics). The satellites point to the pillar, the pillar links back to each satellite.
This structure sends a strong signal to Google about your thematic expertise and allows Googlebot to crawl the entire silo from a single entry point.
Avoid cross-links between silos without thematic relevance: they dilute signals and obscure the logical architecture of your site.
- Identify 3 to 5 main themes corresponding to your most strategic pages.
- Create one long and exhaustive pillar page per theme.
- Write 5 to 10 satellite contents targeting specific sub-queries.
- Systematically link each satellite to its pillar with a descriptive anchor.
Link anchors: an often overlooked signal
The anchor text of an internal link helps Google understand the topic of the destination page. Prefer descriptive anchors ('internal linking strategy') over generic anchors ('click here', 'learn more').
Vary your anchors for the same link to the same page to avoid an artificial profile. The goal is naturalness: the anchor should fit into the sentence without forcing.
An internal linking audit followed by restructuring can increase organic traffic to pillar pages by 15 to 40% in three to six months depending on the site's maturity.
Sector studies 2025-2026 on SEO architecture
Auditing and maintaining the linking structure
Past a certain content volume, broken links, chained redirects, and orphan pages accumulate. A quarterly audit with a tool like Screaming Frog or Sitebulb is enough to maintain a healthy link structure.
Pay particular attention to orphan pages — those that receive no internal links — because Googlebot will have trouble discovering and regularly indexing them.
FAQ
How many internal links per page is optimal?
There is no limit set by Google, but consistency is paramount. Aim for links that have real value for the reader. On a blog article, 3 to 8 contextual internal links are generally sufficient.
Do navigation menu links count?
Yes, but they carry less weight than contextual links in the body of the text. Navigation links appear on every page, which dilutes their relevance signal for Google.
Should nofollow be used on internal links?
No, except in very specific cases (login pages, privacy policy). Internal nofollow unnecessarily blocks the transfer of authority between your own pages.