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llms.txt GeneratorMost citations remain unclassified by source type
The “other” category accounts for 88.40% of citation appearances in the current index.
Most citation volume sits outside the hand-maintained named source map.
The numbers behind it.
- Unclassified share
- Domains outside the current named source map remain in “other”.
- 88.40%
- Unique domains
- Distinct normalized domains in the current brand snapshots.
- 725,777
The evidence.
Source
AI Citation Index
| Measure | Result |
|---|---|
| Unclassified share Domains outside the current named source map remain in “other”. | 88.40% |
| Unique domains Distinct normalized domains in the current brand snapshots. | 725,777 |
Population and method
Built from 80,769,585 citation appearances across 725,777 unique domains in the latest valid snapshot for 1,928 tracked brands, observed from October 3, 2025 to October 14, 2026.
Where the evidence stops
The index is a changing panel of tracked brands and prompts, not a random sample of all AI responses.
Domain share is observational. It does not establish causal influence or reveal the full retrieval set.
The hand-maintained source taxonomy is partial: 88.40% of citation appearances remain in “other”.
Model attribution, response-level citation denominators, geography, raw prompts, and raw responses are not retained in the public aggregate.
What to do with this
Category shares are partial and should not be treated as a complete ranking of the web.
Cite this fact.
Source study: Citation Sources“The “other” category accounts for 88.40% of citation appearances in the current index.”
AI Citation Index - Trakkr Research · Most citations remain unclassified by source type
AI Citation Index · Trakkr Research · Updated 14 October 2026