# Top cited domains in the live index | Trakkr Research

Canonical URL: https://trakkr.ai/trakkr-research/citation-sources/trackers/top-cited-domain-tracker
Published: 2026-04-17
Last updated: 2026-04-17
Author: Mack Grenfell

Current head domains in Trakkr’s live public citation graph.

## 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.

## Summary

The head of the citation graph is dominated by cross-category authorities such as Wikipedia, YouTube, Reddit, and major editorial or review sites.

## Benchmark rows

| 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. |
| Unique domains | 208,567 | The citation surface is broad even though a small set dominates. |

## Ranked view

| Item | Value | Detail |
| --- | --- | --- |
| en.wikipedia.org | 6.43% | The current top cited domain in the public citation index. |
| youtube.com | 2.10% | The leading creator platform in the citation layer. |
| reddit.com | 0.79% | Strong community evidence source, especially for opinionated queries. |
| techradar.com | 0.48% | A recurring editorial tech source. |
| forbes.com | 0.48% | A large editorial business source with broad category reach. |

## Related pages

Continue through the same study cluster.

- [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
- [does ai rely more on reference sites than the open web](https://trakkr.ai/trakkr-research/citation-sources/answers/does-ai-rely-more-on-reference-sites-than-the-open-web) - Related answer page
- [the citation graph spans more than two hundred thousand domains](https://trakkr.ai/trakkr-research/citation-sources/facts/the-citation-graph-spans-more-than-two-hundred-thousand-domains) - Related fact 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/trackers/top-cited-domain-tracker.json) - Machine-readable companion file