Internal linking is the most underrated lever in SEO because it is entirely yours. No outreach, no waiting. Just smart links between pages you already own.
The short version
Internal linking is the practice of linking from one page on your website to another. It helps users navigate, spreads ranking value across your site, and signals to search engines which pages are most important.
How to do it well
Link from strong pages to ones you want to lift
Use descriptive anchor text, never click here
Connect related content into clear clusters
Fix orphan pages that have no internal links
FAQ
How many internal links should a page have?
There is no fixed number. Add links where they genuinely help the reader and connect related content. Quality and relevance beat quantity.