What is an Internal Link? SEO Guide
Definition
An internal link is any hyperlink that points from one page on a domain to another page on the same domain. Internal links form the navigation and information architecture of a website and are one of the few ranking factors that site owners control directly.
Why internal linking matters
- Distributes link equity — pages with many backlinks pass authority through internal links to the rest of the site.
- Helps crawlers discover content — orphaned pages with no internal links are rarely indexed.
- Establishes topical relationships — clustering related content with internal links signals topical depth.
- Improves user navigation — well-placed contextual links keep visitors engaged.
Internal linking best practices
- Use descriptive anchor text — let the link describe the destination, not "click here".
- Link from high-authority pages to pages you want to rank.
- Audit and fix broken internal links regularly — they waste crawl budget and frustrate users. Scan your site to find them.
- Avoid burying important pages more than three clicks from the homepage.
Internal linking is one of the highest-leverage SEO activities you control completely. Run a regular link audit to keep the structure clean and ensure every important page is reachable.
Related terms
Crawl Budget
How search engines allocate resources to crawl your site — and why broken links waste it.
Anchor Text
The visible, clickable text of a hyperlink that describes where the link leads.
Backlink
An inbound link from another site — the original ranking signal.
Link Equity
The ranking value passed through links — also known as "link juice".
404 Error
What happens when a page can't be found — and how it affects SEO.
Redirect Chain
Multiple redirects in sequence that slow down pages and dilute SEO value.