What Is an Internal Link?
An internal link connects one page on your site to another page on the same site. Best practices, and a real example.
An internal link is a hyperlink that connects one page on your website to another page on the same website, as opposed to linking out to a different domain. It’s one of the few ranking-relevant elements a site owner controls entirely.
Why internal links matter
Internal links help search engines discover and understand the relationship between your pages, and a page with zero internal links pointing to it, an orphan page, can be genuinely hard for crawlers to find at all, regardless of how good its content is. Beyond discovery, internal links distribute ranking signal across a site: a page with strong external backlinks that links internally to a weaker, related page passes some of that authority along. Most sites underuse this entirely free lever, publishing new content without ever linking back to it from established, already-indexed pages.
How internal links work
- A link is placed in the body content, navigation, or a related-content block pointing to another page on the same domain.
- Crawlers follow the link to discover the destination page, especially valuable for newer or less-linked content.
- Anchor text and surrounding context signal to search engines what the destination page is about and how it relates to the linking page.
- Link equity flows through the connection, though the exact weighting depends on the linking page’s own authority and the number of other links on that page.
Internal linking best practices
- Link from high-authority pages to newer or weaker ones. Your homepage and top-performing content have signal worth spreading.
- Use descriptive anchor text, not “click here,” so both users and crawlers understand the destination before clicking.
- Link contextually, within the body content, not just in a generic sidebar or footer, which carries much less relevance signal.
- Audit for orphan pages regularly. Any page with zero internal links pointing to it needs at least one, ideally from a topically related page.
- Don’t over-link a single page. Dozens of links crammed into one page dilute the value each one passes.
Internal link vs. external link vs. backlink
| Term | Direction | Domain |
|---|---|---|
| Internal link | Page to page, same site | Same domain |
| External link | Your page linking out | To a different domain |
| Backlink | Another site linking to you | Incoming, from a different domain |
Real example
For example, a blog post about budgeting linking to that same site’s separate guide on emergency funds is an internal link, helping readers find related content without leaving the site, and giving the emergency funds page an additional discoverable path and relevance signal it wouldn’t otherwise have.
Internal links and AI search
A well-linked site structure helps AI crawlers and answer engines understand topical relationships between pages, similar to how it aids traditional search crawlers, and can support being recognized as a comprehensive, authoritative source on a subject rather than a collection of disconnected pages. Sites building topic clusters specifically to strengthen AI visibility rely heavily on deliberate internal linking between the pillar page and its supporting content.
FAQ
How many internal links should a page have?
There’s no fixed number, it depends on the page’s length and how many genuinely relevant related pages exist. A handful of contextual, well-placed links usually beats a dozen forced ones.
What’s an orphan page?
A page with zero internal links pointing to it from anywhere else on the site, making it much harder for crawlers, and users, to discover, regardless of the content’s actual quality.
Do internal links pass the same value as backlinks?
No, they work differently. Backlinks bring in new external authority; internal links redistribute authority you already have across your own site, they serve different, complementary purposes.
Can too many internal links hurt a page?
Excessive, unnatural link placement dilutes the signal passed to each destination and reads poorly to visitors. Prioritize the most genuinely relevant links over cramming in as many as possible.
Related terms
Every new page you publish needs at least one internal link pointing to it before you move on. This is the free SEO work most teams skip entirely.