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Definition
Share of Sources
Share of Sources is the percentage of all sources appearing in AI responses that come from a specific domain—showing who influences the category narrative.
Why Share of Sources Matters
If "reviewsite.com" has 35% share of sources for your category, that site is effectively "training" the answer patterns users see.
Action Steps
- **How to improve your share:**
- Publish reference pages worth citing
- Earn backlinks/mentions from already-dominant sources
- Build topical clusters so your site becomes a "go-to" domain
- **Find which domains own your category.**