Glossary
What is keyword cannibalization?
Keyword cannibalization happens when two or more pages on the same site target the same search intent, so they compete with each other and Google alternates between them or ranks neither well. Not every overlap is a problem; it is when the pages answer the same question for the same reader.
How to spot it
In Search Console, filter the Performance report by a query and switch to Pages. If two or more URLs share impressions for the same query and positions swap over time, check whether they answer the same thing.
When overlap is fine
A glossary definition and a long guide can both mention "dofollow link" while serving different intents: one quick definition, one in-depth how-to. Link them to each other with clear anchors so Google sees the relationship.
Fixes
| Situation | Fix |
|---|---|
| Two pages, same intent | Merge into one, 301-redirect the other |
| Overlapping but different intent | Sharpen each page's focus and titles |
| Glossary vs article | Keep both, cross-link, keep the glossary short on the topic the article owns |
| Old vs new version | Update the old one instead of publishing a new one |
Example
We already had an article on Domain Rating vs Domain Authority. The glossary entries for DR and DA define each term and link to the article for the comparison, instead of creating a competing "DR vs DA" glossary page.
FAQ
Is cannibalization always bad?
No. Only when pages serve the same intent and split performance.
Can a canonical fix cannibalization?
If one page duplicates another, yes; otherwise merging or differentiating is better.
How do I prevent it?
Plan one page per intent in a topical map and check before publishing.