What is internal linking?
An internal link is any clickable link that points from one page of your site to another page on the same site. Your navigation menu is internal linking. So is a link in a blog post that sends a reader to your services page, or a footer link to your contact form. If both the link and its destination live on your domain, it is internal. Links that point to a different website are external links, which is a separate topic.
Why does internal linking matter for SEO?
Internal links do three useful jobs at once. First, they help search engines find your pages. Crawlers follow links from page to page, so a page with no internal links pointing to it can be hard for Google to discover. Second, they pass authority. When a strong, well-linked page links to another page, it shares some of that ranking strength, telling search engines the linked page is worth attention. Third, they guide people. A reader who finishes one article and finds a helpful next link stays longer and is more likely to reach a page that turns them into a customer.
How do internal links help with AI search?
The same structure that helps Google also helps AI tools. When ChatGPT, Gemini, or Google's AI Overviews crawl and summarize your site, clear internal links help them understand how your pages relate and which ones are central to your business. A well-connected site reads as organized and authoritative, which makes your content easier to cite. (If AI visibility is the goal, our guide on why your business may not show up in ChatGPT covers more.)
How to do internal linking well
Use descriptive link text
The clickable words in a link, called anchor text, should describe where the link goes. "Learn about our SEO and AI search service" is far more useful than "click here." Descriptive anchor text helps search engines understand the destination page and helps readers know what to expect.
Point links toward your most important pages
Decide which pages matter most for your business, usually your core service pages and your contact page, and make sure plenty of other pages link to them. The pages you link to most often are the ones you are telling search engines to prioritize.
Link where it genuinely helps
Add internal links where a reader would naturally want more detail, not by stuffing in as many as possible. A blog post about keywords might link to a related post and to your services page. Relevance is what makes a link valuable to both people and search engines.
Do not orphan your pages
An orphan page is one that nothing else links to. These pages are easy to miss and tend to underperform. Whenever you publish something new, link to it from at least one or two existing, related pages so it is connected to the rest of your site.
Key takeaway
Internal linking is one of the few SEO levers you fully control. Link your pages together with clear, descriptive text, send links toward the pages that matter most, and connect every new page to existing ones. It helps search engines and AI understand your site, and it keeps visitors moving toward becoming customers.
Frequently asked questions
What is the difference between internal and external links?
Internal links point to other pages on your own website. External links point to a different website. Both matter for SEO, but internal links are the ones you fully control.
How many internal links should a page have?
There is no fixed number. Add as many as genuinely help the reader and connect related pages. A typical blog post might include a handful of relevant internal links rather than dozens of forced ones.
Does anchor text really matter?
Yes. Descriptive anchor text helps search engines understand the destination page and gives readers a clear idea of where the link goes, which is better than generic text like "click here."
Can internal linking hurt my SEO?
Only if it is done carelessly, such as stuffing in irrelevant links or using the exact same anchor text everywhere. Natural, helpful links pointed at relevant pages are safe and beneficial.