> ## Documentation Index
> Fetch the complete documentation index at: https://docs.corbado.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Passkey Insights

> Detailed analytics on authenticator distribution, sync status and passkey usage patterns across your user base.

**Passkey Insights** provides comprehensive analytics about how users store and use passkeys across different authenticators and platforms.

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## Authenticator Distribution

### Total View

View pie charts showing authenticator market share:

* **Major Authenticators** (>5% share): iCloud Keychain, Google Password Manager, Windows Hello
* **Third-Party Managers**: 1Password, Bitwarden, and other password managers
* **Detailed Breakdown**: Complete list of all authenticators in use

### Combined Analytics

Combine authenticator data with:

* **Operating System**: See how authenticators distribute across iOS, Android, Windows, macOS
* **Browser Usage**: Understand which browsers are used with each authenticator
* **Market Share Insights**: Identify dominant combinations (e.g., iCloud Keychain + Safari)

<Info>
  The most interesting insights come from third-party password manager usage patterns. For example, 1Password usage may be highest on iOS, followed by macOS and Windows.
</Info>

## Sync Status Analysis

Track whether passkeys are synced or device-bound:

* **Synced Passkeys**: Most iOS and Android passkeys via platform authenticators
* **Device-Bound**: Windows Hello passkeys (as of late 2024)
* **Cross-Platform Sync**: Passkeys synced via third-party managers on Windows

<Tip>
  Monitor the percentage of Windows users with synced passkeys - these are using third-party password managers like 1Password or Bitwarden.
</Tip>

## Transport Capabilities

Understanding passkey transport tags:

* **Hybrid**: Passkeys that support cross-device authentication via QR code
* **Internal**: Platform authenticator passkeys
* **USB/NFC**: External security key support

## Time Series Analysis

### Trend Monitoring

Track changes over time by switching to daily/monthly views:

* **Authenticator Shifts**: Monitor adoption of new authenticators
* **OS Update Impact**: See how iOS/Android updates affect passkey behavior
* **Implementation Changes**: Track impact of your rollout changes

### Example Patterns

Common patterns to watch for:

* **iOS Updates**: Sharp changes in transport tags after iOS releases
* **Gradual Adoption**: Slow increase in third-party manager usage
* **Platform Shifts**: Migration between authenticators over time

<Warning>
  Sudden drops in hybrid/internal transport tags may indicate iOS updates or implementation issues that need investigation.
</Warning>

## Use Cases

### Planning and Decision Making

* **Exclusion Policies**: See impact before blocking third-party managers
* **Error Investigation**: Correlate error patterns with specific authenticators
* **Rollout Planning**: Understand user preferences for targeted rollouts
* **Support Preparation**: Anticipate support needs based on authenticator distribution

### Key Metrics to Track

* Third-party password manager adoption rates
* Sync vs. device-bound ratios by platform
* Authenticator diversity in your user base
* Platform-specific preferences