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Glossary · On-page & content

internal link

Also called internal linking

Reviewed 31 Oct 2026 By Madiha Fatima 4 min read Check it yourself: yes, free

4 min
Definition

An internal link is a link from one page of your website to another page on the same site. The menu, the footer and a line in a blog post that points to a service page are all internal links. They guide visitors to the next step and show search engines which pages exist and which ones matter most.

Pages with many internal links pointing at them are treated as the site's important pages. A page with none, an orphan, is hard for anyone to find and rarely ranks.

Short version: your pages pointing at each other, so the important ones get found.
Why it matters for your business

Your best page is only as strong
as the pages that point to it.

Authority flows around a website through its links. Your homepage usually has the most of it, because most outside links point there. Every link from it passes a share onward, and every page that links on passes a share again. A service page linked from the menu, the homepage, three blog posts and the footer collects authority from all of them. A service page linked from nowhere but a dropdown collects almost none, however good it is.

Internal links are also the cheapest SEO work there is. They need no budget, no outreach and no permission. Most small business sites have years of blog posts that never mention the service they were written to sell, and area or product pages that only the menu knows about. Adding the right links from the right paragraphs can lift a page faster than anything an agency will sell you by the month, which is why it should be an early item in any SEO audit.

Example

A real estate agency with twenty area guides
that never mention the listings.

What the agency sees

Twenty well-written guides to living in each neighbourhood: schools, commute, cafés. Plenty of readers. The listings pages for the same neighbourhoods get almost no traffic from search, and the agency has started paying for ads to them.

/guides/living-in-the-marina/ links out: 0 /properties/marina/ links in: 1 (menu)
What Google sees

Twenty popular pages that lead nowhere and twenty listings pages that only the menu knows about. One sentence added to each guide, see current apartments for sale in the marina, linked with those words to the matching listings page, connects the two. The listings pages gain twenty relevant links overnight and start to rank for the searches the guides were already attracting.

Try it
  • /properties/marina/
  • /guides/living-in-the-marina/
  • /guides/marina-schools/
  • /blog/marina-market-update/

The guides point at the listings page and lend it their readers and their authority. The page that makes the money gets found.

How to check it on your site

Four checks, no tools to pay for.

Tick each one as you go. 0 of 4 checked on your site.

  1. Count the links into your most important page

    In Google Search Console, open Links and then Top linked pages under Internal links. Your main service or product pages should be near the top. If the privacy policy outranks your best service, the menu and footer are doing all the linking and your content is doing none.

  2. Find the orphans

    Compare the pages in your sitemap with that same internal links list. Any page in the sitemap that has no internal links, or only one, is an orphan. Area pages, old landing pages and new services are the usual ones.

  3. Read three blog posts and look for the service

    Open three of your most-read posts. Does each one link, in the body text, to the service or product it relates to? A good post mentions the service naturally and links the mention. A bad post ends with a generic contact line and nothing else.

  4. Click from the homepage to any page in three clicks

    Starting at the homepage, try to reach a specific product, location page or article using only links on the pages. If it takes more than three clicks, or you have to use search, Google is having the same trouble.

Related terms

Usually in the same sentence.

Read next

Where this shows up in practice.

Content Is blogging dead for small business?

Posts that never link to the pages that earn are the reason blogging looks like it does not work.

 Conversion Traffic but no leads

Readers who arrive at a guide and never see the service page is a linking problem before it is anything else.

 Industry SEO for real estate

How area guides, listings and agent pages should link to each other on an agency site.
Related service

An internal link audit and rewrite is part of the on-page phase of the SEO service, and every article from the content service links to the pages it is meant to sell. Prices are on the price list, not on a call.

See the SEO service
Reviewed by Madiha Fatima, founder of 99creatix

Every entry in this glossary is written and checked by the person who runs the agency, reviewed at least once a quarter and dated. Last reviewed 31 October 2026.

Spotted an error or a term we are missing? Tell us and it is fixed within the week.

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Next step

Pages that nobody
points at?

Fifteen minutes with your Search Console. We will show you which of your pages are orphaned, which posts should be linking to them and what that would change, before you decide anything.

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