Internal linking lifts rankings faster than a new article

Internal linking means linking your own site’s pages to each other. It is the most underrated SEO tactic there is: entirely within your control, free, and often the fastest way to lift the rankings of pages you already have.

Here I go through why internal links affect rankings, how to design a good link structure and which mistakes eat away its effect.

Why internal linking affects rankings

Internal links do three things at once.

They help Google find pages. The crawler travels along links. A page with no internal link pointing at it may go entirely unindexed, or get indexed slowly.

They say what is important. A page with many internal links pointing at it from different parts of the site is, in Google’s eyes, core content. This is how you steer authority to the pages you want to rank.

They say what a page is about. The anchor text, the clickable words, is a strong hint to Google about the target page’s topic. “Read more” says nothing; “the cost of search engine optimisation” says everything.

And a fourth thing that gets forgotten in SEO discussion: links carry the human reader. A visitor who moves from one article to another and finally to a service page is several clicks closer to getting in touch than a visitor who read one page and left.

Pillar pages and supporting content: the structure that works

The clearest way to organise internal linking is the pillar model:

• The pillar page is the main page for a topic, targeting the most competitive search term. Usually a service page or a broad guide.
• Supporting content is articles covering the topic’s sub-questions and targeting long-tail searches.
• Every piece of supporting content links to the pillar page, and the pillar page links to the most important supporting content.

On this site, for example, the search engine optimisation service page is a pillar, and the articles on keyword research, technical SEO and link acquisition are its supporting content. The structure tells Google unambiguously which page is number one for the topic.

How to improve internal linking in practice

1. Find orphan and neglected pages

An orphan page is a page with no internal link pointing at it. You find them by comparing the sitemap against the pages that do have links, or with a free crawler such as Screaming Frog. Every important page should have at least three internal links from different parts of the site.

2. Add links from old articles to new ones

When you publish a new page, do two things: link from it to older related content and, more importantly, open 3–5 old articles and add a link to the new one. The latter is almost always forgotten, which is why new pages end up isolated.

3. Write descriptive anchor text

The anchor text has to say what is behind the link. Vary the wording naturally: “keyword research instructions”, “how to do keyword research”, “keyword research in practice”. Do not repeat exactly the same anchor dozens of times; it looks mechanical.

4. Steer authority to the money pages

Blog articles attract links and traffic more easily than service pages, but the service pages are what close the deal. Make sure every popular article of yours links to a service page at a natural point. You can see your most popular articles in analytics; those are the links worth the most.

5. Prune pointless links

A page with 200 links steers nothing anywhere. If the menu, footer and sidebar contain a link to every corner of the site, the relative weight of content links drops. Keep navigation tight and let the body-text links do the precision work.

Three mistakes that eat away the effect of internal linking

Every link to the home page. The home page rarely ranks for individual search terms. Link by topic to the right subpage, not always to the root.

Links only to the newest articles. An automatic “latest articles” list is not internal linking in any meaningful sense. A hand-made, topically relevant link inside the text carries many times the weight.

Broken links. Links pointing at deleted or moved pages waste both the visitor and the crawler. Check link health twice a year.

Where to start if you have two hours

Do this: pick your three most important service pages. Find five articles or pages for each that cover the same subject area, and add a descriptive link to the service page. At the same time check that the service pages link to your best articles. This couple of hours of work is probably the single most effective SEO action you can take today without spending a euro.

Navigation, breadcrumbs and body-text links

There are three kinds of internal link, and they have different jobs.

Navigation links (menu, footer) appear on every page and define the site’s basic structure. They say which pages matter most. Keep the menu tight: when it contains everything, it emphasises nothing.

Breadcrumbs (Home / Services / Websites) tell both visitor and search engine where you are in the hierarchy. They also often appear in the search result and improve click-through rate. Breadcrumbs are underrated and easy to add.

Body-text links are the most effective, because they sit in context and their anchor text was written deliberately. These are exactly what most sites have too few of.

How many links should point at one page

There is no exact number, but proportion decides. If your site has 50 pages and 40 internal links point at one of them, the message is clear: that is the most important page. If every page has the same number, nothing stands out.

The practical guideline: clearly the most links to your most important service pages, a few to supporting articles, and at least one to every page. A page nothing points at is effectively invisible.

Internal linking in ecommerce and on large sites

When there are hundreds or thousands of pages, linking by hand does not scale. Structure then decides: a clear category tree running from general to specific, and every product page linking up to its category and sideways to similar products.

Filters and sorting are worth handling so they do not generate an endless number of near-identical addresses. That is the most common way to waste crawl budget on large sites, and it makes Google spend its time on the wrong pages.

Automatic “similar products” and “customers also bought” lists are a workable way to create links at scale, as long as they are based on genuine similarity rather than randomness.

Summary: a checklist for internal linking

Work through this list once a year or whenever you publish new content. Every important page has at least three internal links from elsewhere on the site, anchor texts describe the target’s topic, every supporting article links to its topic’s main page and every service page links to its best articles.

Plus: breadcrumbs are in use, broken links have been checked and there are no orphan pages. Once those eight points are in order, internal linking is no longer an obstacle to rankings, and you can concentrate on developing content and external mentions.

Frequently asked questions

What does internal linking mean?

Internal linking means links between pages on the same site. They help Google find the pages, indicate which page is the most important for a given topic and move the visitor onwards towards getting in touch.

How many internal links may a page have?

There is no exact limit, but moderation pays: from a few to a few dozen natural links in the body text. What matters more is that at least three links from elsewhere on the site point at every important page.

Does anchor text affect rankings?

It does. Descriptive anchor text tells Google the target page’s topic and strengthens its ranking for those words. “Click here” throws that benefit away entirely.

What is an orphan page?

An orphan page is a page with no internal link pointing at it. Google finds it poorly or not at all, and it is left without the authority the rest of the site would bring, however good the content is.

Does internal linking help in AI search too?

It does. A clear structure and topically relevant links also help language models work out what your site is about and which pages are the main content for each topic.