Direct Answer
Internal linking is the practice of linking between pages on your own website. It distributes ranking signals (PageRank), helps Google discover new pages, defines topical clusters, and guides users to next-step content. The single highest-ROI internal-linking move is to add 3–5 in-content links to your homepage from every supporting page.
Voice answer (≤30 words)
“Internal linking is linking between pages on your own site. It distributes ranking signals and defines topical clusters.”
Use descriptive anchor text — not 'click here' — so the link tells Google what the destination page is about.
Audit internal links with Screaming Frog (free under 500 URLs) or Ahrefs Site Audit.
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