Top cited domains in the live index | Trakkr Research
Current head domains in Trakkr’s live public citation graph.
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.
Summary
YouTube, English Wikipedia, and Reddit form the current head, but together account for only 7.04% of citation appearances.
Benchmark rows
| Metric | Value | Context |
|---|---|---|
| Top three domain share | 7.04% | YouTube, English Wikipedia, and Reddit together account for 7.04%. |
| Citation appearances | 48.4M | 48,422,016 appearances in the verified August 18, 2026 snapshot. |
| Unique domains | 529,165 | Distinct normalized domains in the current brand snapshots. |
Ranked view
| Item | Value | Detail |
|---|---|---|
| youtube.com | 3.47% | The current top cited domain in the public citation index. |
| en.wikipedia.org | 1.83% | The second-ranked domain in the current snapshot. |
| reddit.com | 1.74% | The third-ranked domain in the current snapshot. |
| linkedin.com | 0.64% | The fourth-ranked domain in the current snapshot. |
| google.com | 0.62% | The fifth-ranked domain in the current snapshot. |
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
- the citation graph spans more than two hundred thousand domains - Related fact page
Data & Sources
- AI Citation Index - Flagship study behind this page
- Page JSON - Machine-readable companion file