The Keyword Cannibalization Checker identifies when multiple pages on your website target the same or very similar keywords, causing them to compete against each other in search results. It analyses your sitemap or URL list, maps pages to their target keywords, and surfaces all keyword conflicts with ranking data so you can see exactly where the problem pages are and how severely they are splitting each other's performance.
Keyword cannibalization happens when Google cannot determine which of your pages is the most relevant answer to a query because multiple pages are competing for the same term. The algorithm's response is predictable: it oscillates between the competing pages, ranks none of them at their ceiling, and may choose the wrong page to show — often a blog post instead of a transactional landing page, or an old article instead of a newer authoritative guide.
The most common cause is publishing more content than you can track. Sites that have been creating content for years almost always have cannibalization: a product page and a buying guide competing for the same commercial keyword, three blog posts that all target "how to do X," or category pages that overlap with pillar articles. This tool surfaces those conflicts before they compound further.
