Citation Share Index

A Citation Share Index measures the only scoreboard that now matters: who gets named when buyers ask AI. For a given category — beauty, banking, healthcare, private aviation — a CSI runs a battery of real buyer prompts across ChatGPT, Claude, Gemini, Perplexity, and Google AI Overviews, then tracks which brands the engines cite, how often, and across how many query types.

The output is citation share — your slice of the answers your market sees. Published by Everything-PR across 30-plus verticals, the CSI turns AI visibility from a guess into a measurable, competitive metric.

Citation share is the new market share of discovery. More than a third of consumers now begin product research with AI, not Google. A Citation Share Index tells a brand exactly where it stands on that new front line — and where the gap to close is.