Internal linking: a simple way to boost your SEO

Points to remember

• Internal linking makes it easier for Google to index your pages
• It improves navigation for your visitors
• A well thought-out strategy boosts the authority of your content
• Avoid over-optimization and unnecessary links
• Some tools can help you audit and improve your links

What is internal linking?

When I talk about internal linking, I'm referring to all the links created between the different pages of a single site. This makes it easier for visitors and Google alike to navigate the universe of your content.

This is not to be confused with external links, which are links to other sites. Both are important, but today I'd like to focus on what you can fully control internally.

Google attaches great importance to internal linking, as it helps it to understand the hierarchy of pages, to uncover deep, often overlooked content, and to better distribute authority throughout the site.

Why is internal linking crucial to SEO?

Firstly, it improves crawling. When an indexing robot arrives on your site, it follows the links to discover the pages. The better they're linked, the faster they'll be crawled.

It then transmits what is known as the PageRank, a kind of “link juice” that makes certain pages more valuable, depending on the number and quality of the links they receive.

Finally, for your visitors, it's a smoother experience. Dead ends are avoided, reading is gently guided, and bridges are created between subjects. Personally, I really like this approach: it makes navigation natural, almost instinctive.

Best practices for internal linking

Use optimized but natural anchors

I recommend using relevant keywords in your internal links, while remaining fluid. An over-optimized anchor can appear artificial, even suspect, in Google's eyes.

Prioritize pages by importance

Not all pages are created equal. Priority should be given to the most strategic pages, those that generate traffic or convert. These are the pages to which links should most often point.

Create relevant contextual links

A link should fit naturally into the text. If I'm talking about a related subject, I'll insert a link for further reading. It's more pleasant for the reader and more logical for the search engines.

Avoid broken or useless links

A broken link is frustrating. A link without added value is noise. I advise you to clean up your site regularly, so as to keep only the essentials.

How do you build an internal linking strategy?

Audit existing pages

Before I start, I always take stock. Which pages exist? Which are visible? Which are forgotten? That's a good place to start.

Identify pillar pages and subpages

The pillar pages deal with central topics. They deserve to be highlighted. The secondary, more specific pages complement them. Together, they form an ecosystem.

Plan internal links according to semantic cocoons

The semantic cocoon is a logical, thematic organization of your content. I link pages together according to their subject matter, to create small, coherent universes.

Update content regularly

A link that's relevant today may not be tomorrow. I often go back over my articles to adjust, correct or add new links.

Common mistakes to avoid

• Over-optimizing anchors : Too many keywords is counterproductive
• Links to unhelpful pages : They dilute the overall impact
• Too many links on the same page: This can drown the user
• Lack of thematic coherence : This breaks the logic of the content

Useful tools for analyzing and optimizing your internal links

• Screaming Frog: Ideal for analyzing the entire site structure
• Ahrefs : Very effective for identifying orphan pages or internal links
• SEMrush: Audit your network and visualize opportunities
• Google Search Console : To check indexing and exploration errors
• Oncrawl : To go even further in technical analysis

Example of internal linking on an SEO blog

Imagine a blog with a central article on “How to improve your SEO”. Around it gravitate secondary articles such as “Optimizing your title tags”, “Choosing the right keywords” or “Improving your site's speed”.

I link these articles to the main content and to each other, according to relevance. This network creates a solid, readable, pleasant-to-follow mesh for both the user and the search engine.

FAQ

How many internal links do I need per page?

I'd say: as much as necessary, but no more. Google recommends staying natural. I aim for between 3 and 10 links, depending on the length of the content.

Should internal links be nofollow?

No. An internal link in nofollow does not transmit authority. Except in very specific cases, I leave them in dofollow.

Is internal linking enough for a site to rank well?

Unfortunately not. It's just one piece of the SEO puzzle. For real results, you need to add quality content, backlinks, a clean technical structure... and a lot of patience.

Internal linking is a simple, unobtrusive yet highly effective lever. By taking an interest in it now, you'll be one step ahead of many others. So, are you ready to weave your web?