Content cannibalization occurs when a site has two or more pages targeting the same or very similar keywords. Instead of one strong page consolidating all ranking signals (backlinks, engagement, internal links), the signals are split. Search engines may alternate which page they show, or both pages may rank lower than a single consolidated page would. Cannibalization is common on sites that have published content over years without a systematic clustering strategy. Detection requires comparing keyword targets and actual ranking URLs across the content library. Resolution typically involves consolidating pages (merging content and redirecting), differentiating intent (making each page target a distinct search intent), or deindexing the weaker page. Prevention is better: keyword clustering during planning ensures each cluster maps to exactly one content piece.
Content Cannibalization
When multiple pages on the same site compete for the same search queries, splitting ranking signals and often causing both pages to underperform.