Glossary
Internal linking
Internal linking is the practice of linking from one page on a website to another page on the same site — used to distribute link equity, signal page importance, and help users (and crawlers) discover content.
Internal linking is one of the most underrated SEO levers. Every internal link distributes PageRank from the source page to the destination page; well-linked pages rank better than orphaned pages even when content quality is identical.
Three patterns dominate: hub-and-spoke (pillar pages link to cluster pages, cluster pages link back to pillar), contextual links (in-prose links from one article to another when the topic genuinely overlaps), and structural links (nav, footer, sidebar) that appear site-wide. Each has different SEO weight — contextual links carry the most weight, structural links the least.
Anchor text matters. The visible text of the link signals to Google what the destination is about. 'AI website builder' as anchor text passes more topical relevance to the destination than 'click here' or 'this page'. Over-optimization (every link using the exact same phrase) looks unnatural and triggers Google's anchor-text spam detection — vary the anchors.
Common internal linking mistakes: orphan pages (no internal links pointing in, only the sitemap), excessive nav links (every page links to every other page through the nav, diluting link equity), broken internal links (404s within the site), and missing related-content sections (pages that would naturally cluster but have no in-prose connection).
Audit and improve: Screaming Frog or Sitebulb crawl the site and report orphan pages, broken internal links, and anchor-text distribution. Most sites benefit from adding 5–10 contextual internal links per blog post or programmatic page — the highest-leverage SEO tactic that doesn't require new content.
Example
A blog post about 'AI prompting for landing pages' becomes more rank-worthy when it links contextually to /learn/prompting-for-websites (the pillar), /use-cases/landing-page (the closest use case), and /vs/v0 (a relevant comparison). The post and the linked pages both gain ranking from the connection.