Internal linking is the practice of linking from one page to another within the same website to help users and search engines navigate content.
Internal links play a key role in distributing PageRank across a site. Pages that receive more internal links are generally treated as more important by search engines.
Strong internal linking improves crawl efficiency, clarifies topical relationships, and helps important pages rank more consistently. Poor internal linking can trap authority in unimportant pages or leave key pages underlinked.
Unlike backlinks, internal links are fully under your control, making them one of the most powerful and reliable SEO tools.