Why internal linking is your number 1 lever
Unlike link building (costly and unpredictable), internal linking depends on no one but yourself. Every internal link you add is a signal sent to Google and AI systems saying: "this page is important, it is connected to this topic".
The data speaks for itself. A study by Ahrefs (Singapore/Dublin, 2025) across 14,000 sites shows that pages with 5+ inbound internal links rank on average 3.2 positions higher than pages with 0-1 internal link. For European sites specifically, Sistrix (Bonn) reports an even more pronounced gap: +4.1 positions.
Kevin Indig, SEO consultant based in Zurich: "Internal linking is the only SEO lever where you have total control and immediate impact. It is absurd that most companies do not dedicate 10 minutes a week to it."
The 4 types of internal links and their role
| Type | Where | SEO role | AI role | Priority |
|---|---|---|---|---|
| Navigation | Menu, header, footer | Global authority distribution | Understandable structure | P1 |
| Contextual | In the body text | Strong semantic signals | Thematic context | P1 |
| Sidebar / Related | Sidebar, "related articles" | Complementary distribution | Content discovery | P2 |
| Breadcrumbs | Navigation trail | Hierarchy + rich snippets | Position in site architecture | P1 |
The most powerful type? The contextual link. A link placed in a relevant paragraph, with a descriptive anchor text, sends a far stronger semantic signal than a link in a menu or footer.
The 5-step method
Here is how we build internal linking at AISOS:
- Map — list all your pages and group them by thematic silo. Each silo has a hub (pillar page)
- Define flows — each article must point to its hub, and the hub must point to all its articles. Add 1-2 links to articles from other silos
- Choose anchors — descriptive and varied anchor texts. Not "click here" or "learn more". Favour anchors that contain the target keyword of the destination page
- Implement progressively — with every new article published, add 3-5 internal links to existing pages, and update 2-3 existing articles to point to the new article
- Audit quarterly — use Screaming Frog or Sitebulb to detect orphan pages, broken links, and distribution imbalances
Internal linking and AI citations
AI crawlers follow your internal links to understand the relationships between your content. A coherent internal linking structure reinforces your topical authority in the eyes of LLMs, which increases the probability of being cited as an expert source.
Lily Ray, VP SEO at Amsive (regular contributor to SMX Munich): "LLMs evaluate a site's expertise partly through the coherence of its internal linking. A site with 50 articles on the same topic, well linked to each other, will be cited more often than a site with 50 scattered articles without links."
To go deeper into the overall architecture that hosts your linking structure, read our SEO + AI site architecture guide. For the content strategy that feeds your linking, see our article on topical authority. And for the complete technical context, see our technical SEO guide 2026.
The 5 fatal internal linking mistakes
- Orphan links — pages with no inbound internal links (invisible to bots)
- Generic anchors — "click here", "learn more" — zero semantic signal
- Over-linking — too many links on a single page dilutes PageRank and overwhelms users
- Random linking — links without thematic logic that muddle signals
- Ignoring old articles — not updating old content to point to new articles
FAQ — Internal Linking
How many internal links per page?
There is no magic number, but a good rule is 3 to 8 contextual links per 1,500-word article. The important thing is that each link is relevant to the reader, not just for SEO.
Should internal links open in a new tab?
No. Internal links should open in the same tab. Opening a new tab is reserved for external links. This is a UX convention that improves navigation and bounce rate.
Do footer links count for internal linking?
Yes, but less than contextual links. Google and AI systems give more weight to links placed in the main content of the page. Footer links are useful for navigation but have only a marginal SEO impact.
Which tool should you use to audit your internal linking?
Screaming Frog (free version up to 500 URLs) and Sitebulb are the references. For a macro view, Ahrefs and Semrush offer internal link analyses in their Site Audit modules.
Can internal linking replace link building?
No, they are complementary. Link building brings external authority, internal linking distributes it. Without backlinks, you have little PageRank to distribute. Without internal linking, your backlinks only benefit the linked page.
Is your internal linking working for you?
We audit and restructure your internal linking to maximise authority distribution and AI citations.
Optimise my internal linking
