How big is the competitive set for AI citations? | Trakkr Research

The current index contains 529,165 unique cited domains across 1,643 tracked brands. That is the observed citation surface, although not every cited domain is a commercial competitor.

Methodology: Built from 48,422,016 citation appearances across 529,165 unique domains in the latest valid snapshot for 1,643 tracked brands, observed from October 3, 2025 to August 18, 2026.

Direct Answer

The current index contains 529,165 unique cited domains across 1,643 tracked brands. That is the observed citation surface, although not every cited domain is a commercial competitor.

What this means

This answer matters because it turns a study finding into an operating rule teams can use when they decide what to publish, refresh, or measure next.

Evidence table

Metric Value Why it matters
Unique domains 529,165 Distinct normalized domains in the current brand snapshots.
Tracked brands 1,643 Current brand-snapshot coverage.

Frequently Asked Questions

How big is the competitive set for AI citations?

The current index contains 529,165 unique cited domains across 1,643 tracked brands. That is the observed citation surface, although not every cited domain is a commercial competitor.

Which numbers from AI Citation Index matter most here?

Unique domains: 529,165. Distinct normalized domains in the current brand snapshots. Tracked brands: 1,643. Current brand-snapshot coverage.

What should a team do next?

Audit the domains that already dominate your category and decide which ones are realistic citation targets. Build source-worthy pages for the query shapes where AI is already citing third parties. Treat reference, review, and social sources as part of your AI visibility surface, not as noise.

What to do next

Related pages

Continue through the same study cluster.

Data & Sources