You control one type of link completely — and most people ignore it
Backlinks get all the attention. Everyone wants links from other sites. But internal links — the links between your own pages — are the one SEO lever you have 100% control over. And they're shockingly effective when used well.
What internal linking actually does
Distributes ranking power. When your homepage gets a backlink, that "authority" doesn't stay on the homepage. It flows through internal links to other pages. The pages you link to the most get the most authority. This is how you decide which pages matter.
Helps Google discover pages. Googlebot navigates your site by following links. A page with no internal links pointing to it might never get crawled — no matter how great the content is.
Establishes topic relationships. When you link from an article about "SEO audits" to an article about "broken links," you're telling Google these topics are related. This builds topical authority.
Improves user navigation. Users who find related content keep reading. Longer sessions, lower bounce rates, higher engagement — all signals Google cares about.
The 3-click rule
Every important page on your site should be reachable within 3 clicks from the homepage. Not buried 7 levels deep. Not hidden behind a search box. Three clicks.
Why? Because each level of depth reduces the crawl probability. Google may never reach pages that are too far from the homepage.
Common internal linking problems
| Problem | Impact |
|---|---|
| Orphan pages (no internal links pointing to them) | Google can't find them |
| All links concentrated on the homepage | Deeper pages get no authority |
| Using "click here" as anchor text | Tells Google nothing about the target |
| Broken internal links | Wasted link equity, bad user experience |
| Too many links on a single page | Dilutes the equity passed to each link |
How to do it well
Link from high-authority pages to important pages. Your homepage and popular blog posts have the most authority. Use them to boost pages you want to rank.
Use descriptive anchor text. "Learn about broken links" is infinitely better than "click here." The anchor text tells Google what the target page is about.
Link contextually. Links embedded naturally within content carry more weight than links dumped in a sidebar or footer.
Keep it relevant. Only link between pages that are actually related. Random links dilute the topical signal.
How to audit internal linking
Manual link analysis breaks down quickly on any site with more than a dozen pages. An automated audit should:
- Map all internal links across the site
- Identify orphan pages with zero internal links
- Calculate crawl depth for each page
- Find broken internal links
- Show the most-linked and least-linked pages
Kaitico maps your entire internal link structure during an audit, flagging orphan pages, deep pages, and broken internal links so you know exactly where to add or fix links.