Of all the SEO techniques available to you, internal linking is one of the most powerful and least utilised. Unlike backlink building — which requires outreach, relationship building, and time — internal linking is entirely within your control, costs nothing, and can be implemented immediately. Yet most sites have internal link structures that are either random, accidental, or actively working against their rankings.
A deliberate internal linking strategy can push pages that are stuck on page two to page one, improve indexing speed for new content, and concentrate your site's authority exactly where it is most needed.
Why Internal Links Affect Rankings
Internal links affect rankings through two mechanisms. First, they distribute link equity — the authority that arrives on your site through external backlinks flows outward through your internal links to the pages they point to. A page that receives many internal links from strong pages accumulates more authority than a page with no internal links, regardless of external backlinks.
Second, internal links signal relevance and importance to Google. When multiple pages on your site link to a specific page using relevant anchor text, Google understands that page as important to your site's topic. The anchor text used in internal links provides additional context about what the linked page is about.
Finding Internal Linking Opportunities
The first step is understanding your current internal link structure. Use our internal link checker to map which pages receive the most internal links and which are under-linked or completely isolated.
Look specifically for:
High-priority pages with few internal links. Your most important pages — the ones you most want to rank — should receive the most internal links. If they do not, that is your first priority to fix.
Orphan pages. As we covered in our guide to finding orphan pages, pages with zero internal links receive no equity and are difficult for Google to discover. Every page on your site should have at least two internal links pointing to it.
Your strongest pages. Identify the pages that have accumulated the most external backlinks — your most authoritative pages. These are your best sources for internal links to other pages because they pass the most equity.
How to Add Internal Links Effectively
Link from your highest-authority pages. When you publish a new article, go back to your three most-linked existing articles and add a contextual link to the new one where relevant. This immediately gives the new page an equity boost from your most authoritative content.
Use descriptive anchor text. The anchor text of your internal links should describe the destination page's topic accurately. "Learn more about broken link building" passes stronger relevance signals than "click here" or "read this article". As we covered in our guide to anchor text diversity, vary the phrasing across different internal links to the same page rather than repeating identical anchor text.
Link deep into your site. Most sites have strong internal linking to their homepage and top-level category pages, but poor linking to deeper articles. Focus your internal linking effort on deep content pages that carry valuable information but receive little authority.
Add links within body content. Contextual links within the main body text of articles pass more equity than links in footers, sidebars, or navigation menus. Google's algorithms weight contextual links more highly because a human editor deliberately chose to place them in that specific context.
How Many Internal Links Per Page?
There is no hard limit, but quality matters more than quantity. Two or three genuinely relevant, contextually placed internal links in a 1000-word article are more valuable than ten forced links that interrupt the reading experience. Focus on links that genuinely help the reader navigate to related content they would find useful.
Summary
Internal linking is a free, immediate, and entirely controllable ranking tool. Audit your current structure with our internal link checker, identify under-linked high-priority pages, and add contextual links from your most authoritative content. Fix orphan pages, use descriptive anchor text, and prioritise deep content pages that carry value but lack internal equity.
Missed the previous article? Read: What Is Content Siloing and How Does It Strengthen Your SEO?