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description: "Dalton prioritizes data privacy and security — EU data centers, GDPR compliance, and responsible tracking practices."
---

# Privacy & Security

Dalton prioritizes data privacy and security in all A/B testing operations.

## Cookie Consent

Dalton automatically detects consent and supports almost all cookie banners out-of-the-box. Only when analytics consent is given, cookies are saved in the browser.

Session storage is used to save an anonymous session ID and provide users with a seamless site experience during the session.

## Cookies Used

Dalton sets the following cookies to ensure consistent user experiences during testing:

### `dalton_session_[id]`
- **Purpose**: Anonymous session identifier for experiment consistency
- **Data Stored**: Random alphanumeric identifier (no personal information)
- **Expiration**: 100 days
- **Domain**: Your website domain

### `dalton_device`
- **Purpose**: Anonymous device identifier for consistent experiences across visits
- **Data Stored**: Random device fingerprint (no personal information)
- **Expiration**: 100 days
- **Domain**: Your website domain

## What We Collect

- **Anonymous identifiers**: Random strings to maintain test consistency
- **Experiment participation**: Which tests a user is enrolled in
- **Variation assignment**: Which version of a test the user sees
- **Conversion events**: Anonymous goal completions and interactions
- **Click events**: Anonymous clicks on your web pages
- **Scroll events**: Only tracked on pages with live experiments

## What We DON'T Collect

- **Personal information**: No names, emails, IP addresses, or identifying data
- **Cross-site tracking**: Cookies are limited to your domain only

## Data Storage

All Dalton data is processed and stored exclusively within the European Union. The primary data zone is eu-central.

**Stored data includes:**
- Anonymous session IDs and device fingerprints
- Experiment participation records
- Conversion rates and goal completions
- Experiment content and aggregate insights

## Questions?

For privacy or security questions, email us at **info@getdalton.com**

View our full [Privacy Policy](https://www.getdalton.com/privacy-policy)