# Analytics And Measurement Privacy

The Gateway should measure launch health without turning the website into a tracking surface.

## Principles

- Do not collect more than needed to operate the website and improve launch quality.
- Avoid cross-site tracking.
- Avoid fingerprinting.
- Avoid selling or sharing visitor data.
- Keep analytics optional, minimal, and documented.
- Prefer aggregate counts over individual visitor trails.

## Useful Metrics

- Page views by page.
- Referrer category where available.
- CTA clicks by category.
- Documentation pages with high exit rates.
- Broken links.
- Browser/device class for layout debugging.

## Avoid

- Session replay.
- Heatmaps that capture text input.
- Third-party ad pixels.
- Cross-site identity graphs.
- Full IP retention when not required.
- Capturing mailto body contents.

## Launch Rule

Do not add analytics until the project decides what signal matters and what data should not be collected.