/terms/citation-share
Citation share
Citation status
Last checked 2026-05-21
What is citation share?
Where attribution rate measures one source against all queries, citation share measures one source against other sources for the same queries. If 100 queries about "GEO" produce 250 citations total across all sources, and your domain is cited 35 times, your citation share is 14%. The metric translates traditional SEO's share of voice concept directly to the AI-search era.
Status in 2026
Critical KPI for competitive GEO analysis. Used by enterprise SEO teams to argue for budget — "we own 22% citation share on AI Overview for the [topic cluster]" — and by indie practitioners to identify uncontested topics where citation share is concentrated in just one or two players. The latter signal is especially valuable: a topic with 80% citation share owned by a single competitor is hard to break; one fragmented across many sources is enterable.
How it relates to other concepts
- Competitive frame of attribution rate.
- Aligns directly with traditional SEO's share of voice KPI.
- Inversely correlated with topic saturation — fragmented topics offer entry; concentrated topics signal a defended position.
- Combined with citation match rate to assess both presence (share) and quality (linked) of citations.
Related terms
FAQ
- How is citation share calculated?
- For a given query set: (citations of target source) ÷ (total citations across all sources for those queries) × 100. The denominator includes every source cited at least once across the query sample.
- What is a good citation share?
- Depends on topic competitiveness. For uncontested long-tail topics (e.g. passage-level optimization) a 40%+ share is achievable. For head terms (e.g. generative engine optimization) even 5% is exceptional given Wikipedia and DA 90+ players dominate.
- Which tools measure citation share?
- Profound, Otterly, OmniSEO, and Peec all offer citation-share dashboards across four or more engines (ChatGPT, Perplexity, Claude, Copilot). They differ on query-sampling methodology, so cross-tool numbers are not directly comparable.