Glossary
Keyword Cannibalization
When multiple pages on the same domain target the same or very similar keywords, diluting ranking potential and confusing search engines about which page to rank.
Keyword cannibalization occurs when a site publishes several pages that compete for the same search queries. Instead of one strong page ranking for a keyword, search engines must choose among multiple candidates, often resulting in lower rankings across the board. This commonly happens when similar content exists under different URLs—for example, a product page and a category page both targeting "blue running shoes," or blog posts covering overlapping topics without clear topical separation.
The practical harm is real. Each competing page dilutes the link equity and ranking signals that could otherwise concentrate on a single authoritative result. Users also encounter friction when they land on a less-relevant version of what they searched for. Search engines struggle to understand which page should own the keyword, so they may rank none of them prominently.
SEOs typically identify cannibalization through rank tracking tools (checking which pages rank for which terms), search console data, and site: queries. The fix depends on intent: consolidate similar content into one stronger page, rewrite duplicates to target different keywords, add internal linking to clarify topical hierarchy, or use noindex/canonical tags to signal which version matters most. The goal is one clear winner per search intent.