The citation graph spans more than 200,000 domains | Trakkr Research
The long tail is enormous even when the head is concentrated.
Methodology: Built from the live citation index backing Trakkr Research, using 8,777,687 citations across 208,567 unique domains observed between October 3, 2025 and April 17, 2026.
Claim
The current Trakkr citation index spans 208,567 unique domains.
Why it matters
Brands do not only compete with category leaders. They compete with an extremely fragmented evidence layer.
Supporting metrics
| Metric | Value | Context |
|---|---|---|
| Unique domains | 208,567 | The citation surface is broad even though a small set dominates. |
| Brands analyzed | 1,038 | Brand coverage in the latest live corpus. |
Related pages
Continue through the same study cluster.
- how concentrated is the ai citation landscape - Related answer page
- does ai rely more on reference sites than the open web - Related answer page
- top cited domain tracker - Related tracker page
Data & Sources
- Where AI Gets Its Answers - Flagship study behind this page
- Page JSON - Machine-readable companion file