Why Internal Links Are One of the Most Underrated SEO Levers
Internal links are hyperlinks that point from one page on your site to another page on the same site. While most SEO attention focuses on building external backlinks, internal linking is entirely within your control and can have an immediate, measurable impact on rankings. Google's crawlers follow internal links to discover new pages, and the structure of your internal links determines how PageRank flows through your site.
How Internal Links Distribute PageRank
Every page on your site has a PageRank score based on the links it receives from other pages (internal and external). When a page links to another page, it passes a portion of its PageRank to the destination. Pages that receive many internal links from high-authority pages accumulate more PageRank and are more likely to rank well for their target keywords. A strategic internal linking structure, where your most important pages receive the most internal links, is one of the most powerful ranking levers you can use without building a single backlink. Our Free internal link counter shows you exactly how your link equity is distributed across your site.
Internal Links and Crawl Budget
Googlebot discovers pages by following links. Pages that are not linked from anywhere on your site — known as orphan pages — may never be crawled or indexed. Every important page on your site should be reachable from at least one other page through an internal link. For large sites, the number of internal links pointing to a page signals to Googlebot how important that page is relative to others, influencing how frequently it is recrawled. Broken internal links (404 errors) waste crawl budget on requests that return nothing useful.