# Analytics4You docs

> How Analytics4You detects YouTube uploads, title and thumbnail changes and A/B tests, what each event means, and what it cannot see. Each link is the markdown version of a page.

## Docs

- [Analytics4You docs](https://analytics4.you/docs/index.md): How Analytics4You tracks the YouTube channels in your niche: adding channels, the four views, and markdown versions of every page for AI assistants.
- [Event types](https://analytics4.you/docs/event-types.md): Every event in the Analytics4You feed: uploads, title and thumbnail changes, A/B tests and results, breakouts, milestones, removals and renames.
- [How detection works](https://analytics4.you/docs/detection.md): Independent cold browser identities for every probe, the YouTube Atom feed for exact publish times, perceptual thumbnail matching and their rules.
- [Limits](https://analytics4.you/docs/limits.md): What Analytics4You cannot observe on YouTube, why it shows unknown rather than an estimate, and how many channels each plan tracks.

## Elsewhere

- [Site overview for language models](https://analytics4.you/llms.txt)