In short:Semantic internal linking: the link architecture that makes you a reference for LLMs — A classical search engine follows links to discover pages. An LLM trained on the web has integrated link patterns as signals of knowledge organization.
4.1×more AI citations for well-linked silos vs isolated pages
73%of e-commerce internal links are semantically incoherent
3 levelsOptimal depth for a silo recognized by LLMs
Internal links seen by an LLM
A classical search engine follows links to discover pages. An LLM trained on the web has integrated link patterns as signals of knowledge organization.
When an LLM was trained on a kitchen e-commerce site with coherent internal linking — the « coffee makers » page pointing to « piston coffee maker », « espresso coffee maker », « filter coffee maker », each pointing to specialized usage guides and FAQs — it built a mental representation of this site as an entity organized around the coffee makers subject.
This representation, once formed in the model’s weights, influences citations. The site recognized as a coherent entity is cited. The site with chaotic internal links is ignored.
4.1×more AI citations for well-linked silos vs isolated pages
73%of e-commerce internal links are semantically incoherent
3 levelsOptimal depth for a silo recognized by LLMs
Semantic hierarchy as an expertise signal
An expert knowledge tree is hierarchical. Général to specific. Central concept to concrete applications.
LLMs were trained on thousands of wikis, encyclopedias, and expertise sites. They recognize the signature of a well-built semantic hierarchy.
A site that structures its knowledge in 3 coherent hierarchical levels scores as an expertise source. A site where all pages are at the same level (flat architecture) does not project this signature of organized expertise.
Architecture of an optimized <a href= »https://www.hi-commerce.fr/glossaire/#geo » class= »hc-gloss-link » title= »Definition: GEO »>GEO</a> silo
The optimal schema for an e-commerce silo recognized by LLMs:
This schema generates 40 to 100 pages for a medium-depth topic. It is this volume, combined with coherent linking, that creates the topical authority recognized by LLMs.
Each page must:
Point to the pillar page (« return to full guide » link)
Point to adjacent cluster pages (thematic link)
Be pointed to from the pillar page AND from the cluster pages of its sub-theme
Contain at least 3 contextual internal links in the body text
Semantic anchor text
The anchor text of an internal link is a strong semantic signal for LLMs.
An internal link with anchor text « click here » or « learn more » brings no semantic signal. It’s dead weight for an LLM.
An internal link with anchor text « piston coffee maker maintenance guide » brings:
The information that the target page covers maintenance
The relationship between the source page (piston coffee makers) and the target page (maintenance)
The exact vocabulary of the sub-topic
Practical rule: every internal link describes precisely the subject of the target page. Zero generic anchors. Zero keyword-stuffed anchors — 1 to 5 words maximum, descriptive and natural.
Pattern to replicate: « Check out our guide to brewing temperatures by coffee type » — descriptive anchor, natural, semantically precise. This type of contextual anchor in body text is 3.2× more effective for GEO signal than an anchor in an « also see » block at the bottom of the page.
The 5 mistakes that weaken the signal
Mistake 1: The flat architecture. All your pages at the same level. All linked from the menu. LLMs perceive no hierarchy. Therefore no organization of expertise.
Mistake 2: Links only in menus and widgets. Contextual links — in body text — carry far greater semantic weight than navigation links. A site where all internal links live in the sidebar sends no signal of organized knowledge.
Mistake 3: Orphan pages. A page with no incoming links from the rest of the silo remains invisible in the knowledge map. LLMs trained on your site have no path to reach it through the link graph.
Mistake 4: Thematically incoherent linking. A page about coffee makers that points to a page about refrigerators without semantic context — rupture in the knowledge map. Every link must follow an explicable thematic logic.
Mistake 5: Systematic generic anchors. "Read more", "See also", "Learn more" — these anchors destroy the semantic signal of internal links. Every link deserves a descriptive anchor.
Internal linking as sustainable authority infrastructure
Semantic internal linking is the least visible and most durable infrastructure of GEO strategy.
Invisible to your competitors. They see your content, not your link logic. Durable because LLMs build their representation on archived web structure — accumulated signals persist in model weights.
Of the 1,300+ silos deployed since 2016, coherent internal linking is consistently the factor that shifts a site from "present in results" to "cited as reference" in AI-generated answers.
The 3 types of semantic internal links and their differentiated impact on LLM authority
An internal link is an internal link. That's what most SEOs think. They're wrong. The semantic context of the link — its context, anchor, position on the page — determines transmitted value. And this value doesn't express the same way depending on whether you're optimizing for Google or LLMs.
Type 1 — The deep contextual link
A link inserted in the body of an argumentative paragraph, on an exact anchor that names the targeted concept. Example: an article on conversion rate linking to an article on product sheets via the anchor "product sheet optimization".
For Google: transmits targeted PageRank with strong thematic signal. For an LLM trained on your site: creates an explicit association between two concepts in its representation space. These associations make you a reference on a topic — not just a site that treats the topic.
3.2x more impact on Googlebot's thematic crawl for a contextual link mid-paragraph vs a sidebar or footer link
Type 2 — The definition link
You use "semantic silo" in an article. You link to your reference page on the subject. You create terminological grounding.
For LLMs, these links build conceptual hierarchy. They signal: "this page is THE authoritative source on this term in this web space." Exactly what a model looks for when it needs to cite a source on a specific concept.
Type 3 — The logical progression link
This is the link that guides the reader — and the crawler — through a logical sequence. From problem to analysis. From analysis to method. From method to tools. A coherent thematic journey.
An LLM reads a site's coherence like a human reads a well-structured book. Logical progression links create this narrative structure that models recognize and value. Not signals of popularity. Signals of intellectual organization.
Practical rule: in a silo of 40 to 100 pages, aim for 60% deep contextual links, 25% definition links, 15% progression links. This ratio comes from analysis of 1,300 silos produced between 2021 and 2024.
Auditing your internal linking: method + tools to identify semantic silences
A semantic silence is a concept your site covers but your linking doesn't articulate. An article about conversion rate but never linking to your articles on UX or product sheets. A thematic silo that exists in content but not in links.
Google detects these silences. LLMs do too. Here's how to find them.
Step 1 — Map existing thematic clusters
Export all URLs from your site with their titles and meta descriptions. Group them into thematic clusters: e-commerce / SEO / conversion / product / logistics. This map is your starting point.
Step 2 — Audit internal inbound links by page
With Screaming Frog or Ahrefs: list the number of internal inbound links for each page. Pages with zero or one inbound link are your first targets. A page with no inbound link doesn't exist in linking — for Google, it's orphaned. For an LLM, it's invisible.
23% of pages on an average e-commerce site are orphaned or quasi-orphaned (fewer than 2 internal inbound links) — data from 180 audits in 2023-2024
Step 3 — Identify silences by cluster
For each thematic cluster: verify all pages in the cluster link to each other. If your "technical SEO" cluster contains 8 pages but 3 of them receive no links from the other 5, the cluster is fragmented.
A fragmented cluster sends ambiguous signal to engines: you cover the topic, but your internal organization shows scattered expertise. Not that of a reference.
Step 4 — Measure anchor depth
Export all internal link anchors. Calculate ratio of exact anchors (target concept name) / generic anchors ("click here", "learn more", "see also"). Goal: 70% minimum thematic anchors in an optimized silo.
Calculated linking: how to define the optimal number of links per page in a 40-100 page silo
No magic number. Just a calculation method that adapts to silo size and depth of each page.
The 3-level rule
A semantic silo organizes in 3 levels. The pillar page (level 1) covers the main topic comprehensively. Cluster pages (level 2) deepen each sub-topic. Support pages (level 3) address highly specific aspects and long-tail questions.
Recommended outbound links per level:
Pillar page (level 1): 1 link to each cluster page in the silo — roughly 8 to 15 contextual internal links
Cluster pages (level 2): 1 link to pillar page + 2 to 4 links to associated support pages + 1 to 2 cross-cluster links
Support pages (level 3): 1 link to parent cluster page + 1 to 2 links to adjacent support pages
6.4 internal links average per page in highest-performing silos — neither too few (weak signal) nor too many (value dilution)
Calibrate by silo size
40-page silo: the pillar can directly link all 39 others — if they all treat the same central subject. 100-page silo: impossible to link 99 pages from pillar without total dilution. You need intermediate cluster pages that become hubs.
Practical formula: pillar outbound links = square root of total pages. 100 pages → 10 links to 10 clusters. 49 pages → 7 links. Approximation, not dogma — but solid foundation.
Cross-silo linking density
An isolated silo plateaus. Cross-silo links — when thematically justified — transmit authority between related topics. Goal: 15 to 20% of a silo's internal links point to pages in thematically close silos.
Linking mistakes that fragment semantic authority — and concrete corrections
1,300 silos delivered. The same mistakes return consistently. Here are the corrections that change everything.
Mistake 1 — Orphaned return links
Problem: page A links to page B. Page B never links back to A, nor to any other cluster page. B becomes a dead leaf in the graph.
Correction: every outbound link demands a pendant. At minimum, one inbound link from another cluster page. Strict reciprocity (A to B and B to A) creates cycles. Unnecessary. Connection to the rest of the cluster is mandatory.
Mistake 2 — Excessive concentration on pillar page
Problem: 80% of the silo's internal links point to the pillar page. Its internal PageRank explodes. Cluster pages become nearly inaccessible from within the silo.
Correction: the pillar page receives 35 to 40% of total internal links, no more. The rest irrigates cluster and support pages by their true thematic weight.
41% of audited silos show this excessive concentration — the most frequent linking problem encountered
Mistake 3 — Identical anchors on different pages
Two silo pages receive the same exact anchor. Google hesitates. Which is THE reference on the concept? Murky signal. Diluted entity.
Correction: one exact anchor = one unique target page in the silo. Period. If two pages cover a related concept, differentiate anchors: "internal linking audit methodology" for the methodology page, "internal linking audit tools" for the tools page.
Mistake 4 — Fixed linking after publication
The silo is created. Linking defined once. Never revised. Six months later, 3 new pages added with no integration into existing linking. The silo loses coherence. Progressive disintegration.
Correction: review linking at every page addition. Simple rule: every new page published in a silo receives minimum 3 inbound links from existing pages before going live.
Caution point: SEO tools measure quantitative linking — link count. Semantic quality of anchors and thematic coherence of links remain manually evaluable. Or via specialized language models.
Frequently asked questions
How many internal links per page is optimal for GEO?
Between 5 and 12 internal links per page, with at least 3 contextual in body text. Below 3: insufficient semantic signal. Above 15: risk of signal dilution and confusion in knowledge map. Anchor quality trumps quantity. Prioritize 5 descriptive-anchor links over 15 generic-anchor links.
Should internal linking be bidirectional (page A → B and page B → A)?
Yes for same-level pages in the silo. No for hierarchical links: the satellite page points to the pillar (signal "I'm part of this set"), but the pillar points to the satellite only when text context justifies it (signal "for deeper dive"). Systematic bidirectional linking without context creates artificial signal that LLMs detect negatively.
Does internal linking matter for Google in 2026?
Yes, and its importance increased with Google updates 2024-2025 valuing topical coherence. Google uses the internal link graph to identify topical authority pages within a site. Well-linked silo lets Google understand which page is "the" reference on each sub-topic. GEO impact (AI citations) and SEO impact (Google rankings) are complementary and mutually reinforcing.
Should you revise existing site linking or restructure completely?
In 80% of cases, partial review suffices. Standard diagnosis reveals: generic anchors (simple fix), orphan pages (fix by adding links from existing thematic pages), flat hierarchy (fix by creating pillar pages on poorly covered themes). Complete restructuring only necessary if site has zero thematic logic — rare. Budget 20 to 40 hours for audit + correction plan on a 200-500 page site.
Can a poorly-linked semantic silo harm SEO?
Yes. Poor linking can dilute pillar page authority signal, create contradictory organizational signals, and generate thin content perceived as redundant. Main risks: cannibalization (multiple pages competing on same queries) and excessive pagination without hierarchy signals. Pre-deployment linking audit is mandatory to avoid these unwanted effects.
Audit your current internal linking
I map your internal link graph, identify orphan pages and generic anchors, and give you the restructuring plan for a silo recognized by LLMs.
