An internal link is a clickable link from one page of your website to another page on the same site. The “About” link in your menu, a “read more” pointing to a blog post, a product mentioned in an article: those are all internal links, and they are the threads that hold a site together.
Picture a museum with signs guiding you from the entrance to each room and back to the exit. Without those signs, visitors wander and miss half the collection. Internal links are those signs. They help people find the next relevant page, and they help search engines understand which content connects to what. Every internal link is just a hyperlink that happens to stay on your own domain, and together they form the backbone of a clear navigation structure.
There is an SEO side too. When search engines crawl your site, they follow internal links to discover pages and judge importance. A page that earns links from many others reads as a priority. Pages with no internal links pointing to them, often called orphan pages, can stay invisible no matter how good the content is. The words you put in the link matter as well. A link that says “our pricing” tells both readers and search engines what sits on the other end, while a vague “click here” tells them nothing. Sprinkling descriptive links through your articles and product descriptions, rather than leaving every page isolated, is one of the cheapest ways to help visitors and search engines at the same time.
At TopDevs we plan internal linking from the start, so every important page is reachable in a couple of clicks and nothing gets stranded.