Keyword Cannibalization — Definition & Meaning
What is Keyword Cannibalization?
Keyword cannibalization happens when multiple pages on your site target the same query and compete against each other in Google's rankings — splitting authority, diluting CTR, and often causing all competing pages to rank lower than a single consolidated page would.
Key points
- Symptom: two pages flip-flopping between positions on the same query in GSC over weeks.
- Cause: overlapping topics, near-duplicate titles, or thin content variations targeting the same intent.
- Fix priority: 1) 301 the weaker page into the stronger, 2) canonicalize to the stronger, 3) rewrite to distinct intents, 4) delete + noindex.
- Detect it with GSC: filter queries where the same query has 2+ different landing pages across the last 90 days.
- Cannibalization is one of the most common causes of stagnant ranking — consolidating usually delivers a 10-30% CTR + position lift on the winning URL.
Example
A blog has "what is keyword difficulty" AND "how does keyword difficulty work" — both target the same query, both rank in the 30s, both split the signal. 301'ing the weaker into the stronger jumps the survivor to position 12 within 2 weeks.
Frequently asked questions
How do I detect keyword cannibalization?
In GSC, filter by a specific query and look at the "Pages" tab. If you see 2+ pages ranking (both with meaningful impressions), you have cannibalization.
What's the fastest fix for cannibalization?
301 redirect the weaker page to the stronger. Google consolidates the signals within 4-8 weeks and the surviving URL usually gains 5-15 positions.
Can two pages target similar keywords without cannibalizing?
Yes — if they target distinct intent. "Best CRM" (commercial) and "how does CRM work" (informational) are the same topic but different intent. Google will rank them for different queries.