# Wikipedia leads the current citation index | Trakkr Research

Canonical URL: https://trakkr.ai/trakkr-research/citation-sources/facts/wikipedia-leads-the-current-citation-index
Published: 2026-04-17
Last updated: 2026-04-17
Author: Mack Grenfell

The current live citation graph still has a strong head domain.

## 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

en.wikipedia.org accounts for 6.43% of all citations in the current Trakkr index.

## Why it matters

This is the clearest proof that AI systems repeatedly prefer dense, entity-rich reference pages.

## Supporting metrics

| Metric | Value | Context |
| --- | --- | --- |
| Wikipedia share | 6.43% | en.wikipedia.org alone accounts for 564,191 citations. |
| Citations analyzed | 8.78M | Current live citation index as of April 17, 2026. |

## Related pages

Continue through the same study cluster.

- [which sources dominate ai citations](https://trakkr.ai/trakkr-research/citation-sources/answers/which-sources-dominate-ai-citations) - Related answer page
- [how concentrated is the ai citation landscape](https://trakkr.ai/trakkr-research/citation-sources/answers/how-concentrated-is-the-ai-citation-landscape) - Related answer page
- [source category share tracker](https://trakkr.ai/trakkr-research/citation-sources/trackers/source-category-share-tracker) - Related tracker page

## Data And Sources

- [Where AI Gets Its Answers](https://trakkr.ai/trakkr-research/citation-sources) - Flagship study behind this page
- [Page JSON](https://trakkr.ai/data/research-answers/citation-sources/facts/wikipedia-leads-the-current-citation-index.json) - Machine-readable companion file