Keyword Cannibalization Checker

Keyword cannibalization is when two or more pages on one site compete for the same search intent, so impressions are split, the ranking URL flips between them, and neither ranks as well as one consolidated page would. This checker takes two to four URLs from your own site, fetches each one, and compares every pair on body-text similarity, title overlap, and H1 overlap. Pairs that look like the same intent are flagged with the terms they share and a merge or differentiate recommendation; identical titles are called out, and pairs that already share a canonical are treated as resolved.

Not every split is a problem. A product page and a comparison page ranking for a brand term serve different intents and can coexist. The test is whether a searcher would be equally served by either page; if yes, the pages are cannibalizing and one should own the intent. The checker compares page content, not rankings, so confirm with 90 days of Search Console data: filter the Performance report by the query and see whether impressions are split across the URLs.

A worked example from serionflow.com between June and September 2026: the query "airops alternative" appeared against three URLs, an alternatives page with 356 impressions at position 56, a comparison page with 174 impressions at position 67, and a hub page with 127 impressions at position 77. Three pages, one intent, and a combined position no better than the weakest. Fixes fall into four types: merge and redirect true duplicates, differentiate related pages, de-optimize hubs and link to the child that should rank, and canonicalize parameter duplicates. Align internal anchor text with the decision and re-check after three weeks.