Internal Links: The Lever Most Sites Ignore

Earning links from other sites is slow, uncertain work. The links inside your own site are entirely within your control, and on most sites they are an accident: whatever the navigation does, plus a few links someone remembered to add. That is a waste, because internal links do three jobs at once, and doing them deliberately is one of the few SEO changes that costs nothing and needs no permission.

What an internal link actually does

It helps pages be found. Crawlers follow links. A page nothing links to is reachable only through a sitemap, and it will be crawled rarely if at all. That is not a theory about ranking; it is how discovery works.

It passes value. Whatever authority a page has, some of it flows along its links. A page that has earned attention from elsewhere is a source your other pages can draw from, and the only thing standing between them is a link you have not added.

It says what the target is about. The words in the link, and the sentence around them, tell a search engine what the destination covers. This is the part people control least well and it is the cheapest to fix.

Anchor text: descriptive, varied, honest

"Click here" and "read more" tell a search engine nothing and tell a screen reader user even less. Use the words that describe the destination: link to a page about backup testing with the words that name it.

Vary the phrasing rather than repeating an identical anchor everywhere. Natural writing produces variation on its own, which is one reason links written into sentences outperform blocks of related links at the bottom of a page.

And keep it honest. An anchor that promises something the page does not deliver produces a visitor who leaves immediately, which helps nobody.

Find the pages nobody links to

Orphaned pages, ones with no internal links pointing at them, are the first thing to fix because the fix is obvious. Find them by crawling your own site with any of the free crawlers and comparing the list of pages found by crawling against the list of pages in your sitemap or CMS. Anything in the second list and not the first is orphaned.

While you are there, look at two related numbers. Which pages have the fewest inbound internal links relative to their importance, and how many clicks from the home page each page takes. A page four clicks deep is being told, structurally, that it is not important. If it matters, shorten the path.

Link from strength to need

The useful move is to find your strongest pages and add links from them to the pages that need help. Your search console shows which pages get the most impressions and clicks; that is the practical stand-in for authority.

For each strong page, ask which two or three of your other pages a reader of this page would genuinely want next. Add those links in the body text, where they are read, rather than in a sidebar everyone ignores. If you cannot think of a natural place, that is a signal the two pages are less related than your topic list suggests.

Group pages that belong together

When you have several pages on one subject, link them into a shape rather than a chain. One overview page covers the subject broadly and links to each detail page. Each detail page links back to the overview and sideways to its closest siblings. This does two things: it tells a search engine which page is the main one for the subject, and it stops your own pages competing with each other for the same query.

Keep the overview genuinely useful rather than a list of links. A page that exists only to hold links tends to be treated as exactly that.

What to avoid

• Links in JavaScript that never become an anchor tag. A crawler that does not run your script sees nothing. Use real <a href> elements for anything that matters.
• Two hundred links in a footer. Value spreads thinner the more links a page has, and a footer repeated site-wide says nothing about any individual page.
• Links through redirect chains. Update the link to the final URL rather than leaving it to bounce.
• The same anchor for every link, everywhere. It reads as manipulation, and it reads badly.
• Breaking links during a redesign. The most common cause of a sudden drop is a URL change with the internal links left pointing at the old addresses.

A routine that keeps it current

When you publish something new, add it to the relevant overview page and add two links from existing pages in the same subject. That is a five-minute habit that prevents orphans entirely.

Once a quarter, crawl the site and check three things: orphaned pages, broken internal links, and redirect chains. Then look at your five strongest pages and ask whether they link to what you most want people to reach now, which is rarely what you wanted a year ago.

None of this requires a tool you have to buy or a change anyone has to approve. It is the part of SEO that is entirely yours, which is exactly why it is worth doing properly.