Site depth refers to how many clicks away a given page is from a website’s homepage, with pages closer to the homepage generally considered more important and easier for both users and search engines to discover.
Excessive site depth — pages buried five or six clicks deep within a complex navigational hierarchy — can significantly reduce the likelihood that search engines crawl and index those pages frequently, and makes them harder for users to find through normal navigation.
Flattening site depth through improved internal linking and navigation structure, especially for genuinely important pages, is a common and effective technical SEO improvement, particularly for larger websites.
Site depth optimization is part of our Technical SEO service.