How to diagnose and fix keyword cannibalisation

Executive summary

Cannibalisation happens when multiple pages chase one intent and compete against each other in the results. This guide shows how to detect it reliably and resolve it by consolidating authority onto the page best placed to win.

What this helps you decide

For each cluster of competing pages, whether to merge, redirect, differentiate, or canonicalise.

Business problem

When several pages target the same intent they divide clicks, links, and relevance signals, so none ranks as well as a single strong page would. The damage is invisible until you look for it.

Step-by-step process

1. 1
   Detect the overlap

   In Search Console find queries where more than one URL ranks and swaps position over time. That flipping is the signature of cannibalisation.

2. 2
   Confirm shared intent

   Compare the competing pages. True cannibalisation means they serve the same intent, not merely share a keyword. Distinct intents are not the problem.

3. 3
   Pick the winner

   Choose the page with the strongest links, best conversions, or clearest URL to be the single canonical answer for the intent.

4. 4
   Choose the resolution

   Merge the useful content of the losers into the winner and redirect them, or if each has a genuinely distinct intent, differentiate them so they stop overlapping.

5. 5
   Consolidate the signals

   Redirect retired URLs to the winner, update internal links to point only at it, and canonicalise any near-duplicates you must keep.

6. 6
   Verify the fix

   Watch the query over four to six weeks to confirm a single URL now holds a stable, improved position.

Worked example

Checklist

• Cannibalised queries identified from position swapping
• Shared intent confirmed, not just a shared keyword
• Winner chosen on links, conversions, and URL quality
• Losers merged and redirected or clearly differentiated
• Internal links repointed to the winner
• Query monitored to confirm a single stable ranking

Common mistakes

• Assuming any two pages sharing a keyword are cannibalising when their intents differ
• Deleting the losing pages without merging their useful content or redirecting them
• Leaving internal links pointing at the retired pages after consolidation

30-minute experiment

KPIs to track

• Number of cannibalisation clusters resolved
• Ranking position of the consolidated page
• Combined clicks before versus after consolidation

FAQs