Most people obsess over backlinks. Fair enough, they matter. But there is a lever sitting inside your own website that you fully control, and most businesses barely touch it: internal linking.

Internal links are the links from one page on your site to another page on the same site. Your navigation, your "related posts", a mention in the middle of an article that points to a service page. Simple stuff. And done well, it quietly does a lot of the heavy lifting for your SEO.

What internal links actually do

Three things, mainly.

First, they help Google find your pages. Search engines follow links to discover and re-crawl content. A page with no internal links pointing to it is an orphan, and orphans get crawled rarely, if at all.

Second, they pass ranking signals. When a page earns authority (from backlinks, age, or traffic), some of that value flows along its internal links to the pages it points to. So the pages you link to most, from your strongest pages, tend to be the ones Google treats as important.

Third, they tell Google what a page is about. The words you use in the link, the anchor text, are a strong hint. Link to your Cardiff service page with the anchor "web design in Cardiff" and you have reinforced exactly what that page should rank for.

That last point is the one people miss. Internal links are not just plumbing. They are context.

The hierarchy most sites get wrong

Here is the pattern we see again and again. A business writes ten blog posts. Every post links back to the homepage in the header. None of them link to each other, and none link to the actual service pages that make money.

So all that lovely blog content sends its authority straight to a homepage that already ranks fine, while the service pages sit starved.

Flip it. Your blog posts should be the feeders. They attract informational traffic, then point readers (and Google) towards the commercial pages you want to rank. A post about local search should link to your SEO service. A post about slow sites should link to your engineering work.

Think of it as a shape. Homepage at the top, category or service pages in the middle, supporting content at the edges, and links flowing inward and across so nothing is isolated.

Anchor text: descriptive, not decorative

"Click here" and "read more" tell Google nothing. They are wasted signals.

Write anchor text that describes the destination. If you are linking to a page about website costs, the link should read something like "how much a website costs in the UK", not "find out more".

That said, do not stuff the exact same keyword into every link. Vary it naturally. Google is fine with a mix of "web design pricing", "what a site costs", and the plain brand name. Robotic repetition of one phrase looks manipulative, and it reads badly for humans too.

And humans are the point. A link that helps a reader get to the next logical step is a link that also helps SEO. The two goals almost never conflict.

Where to place links matters

A link buried in the footer carries less weight than one in the main body of a page, surrounded by relevant text. That is because context around a link tells search engines how related the two pages are.

So the best internal links sit inside your content, mid-sentence, where they genuinely help. A relevant in-content link to your SEO service does more than the same link stacked in a list of forty footer links.

This does not mean footers and navigation are useless. Site-wide navigation is how Google understands your overall structure. But your highest-value links are the contextual ones you place deliberately.

Common mistakes we fix

Orphan pages. New landing pages that nobody links to. Check your site: if a page is not reachable by clicking from the homepage in a few hops, it has a problem.

Too many links on one page. A page with two hundred links dilutes the value each one passes. Be selective. Link where it helps, not everywhere you can.

Broken internal links. Redesigns and URL changes leave dead links behind. Every one wastes crawl budget and frustrates users. Run a crawler occasionally and fix the 404s.

No links from high-authority pages. Your most-visited, most-linked pages are your most valuable senders. If they do not link out to your priority pages, you are sitting on unused power.

Deep pages nobody can reach. If it takes six clicks to get to a page, both users and crawlers struggle. Keep important pages within three clicks of the homepage.

A simple routine that works

You do not need software or a big project. You need a habit.

Every time you publish a new post, do two things. Add two or three links from the new post to relevant existing pages. Then find two or three older posts and add a link from each to the new one. That second step is the one everyone forgets, and it is often the more valuable of the two.

Over a year of publishing, this alone builds a dense, well-connected site where authority flows freely and Google understands exactly how your pages relate.

Once a quarter, pick your three most important commercial pages. Search your own site (site:yourdomain.com plus a keyword) to find pages that mention the topic, then add a contextual link from each. It takes twenty minutes and it is some of the highest-return SEO work available.

Internal linking is part of technical health too

Good internal linking overlaps with the broader technical picture: crawlability, structure, and how efficiently Google spends its time on your site. If you want the full checklist, our technical SEO checklist for a small business covers the rest.

The takeaway is this. Backlinks are hard to earn and slow to arrive. Internal links are free, instant, and entirely within your control. Most sites treat them as an afterthought. Treat them as a strategy instead, and you get more from every page you already have.

Signed, Lewis, Technical Director.