Privacy

Progress without signup

This site can remember progress on this browser using a first-party identifier. It can record viewed and completed items, category and tag interests, checklist progress, badges, recommendations and related activity.

Accounts are optional

You can use the progress features without an account. If you choose to save your progress, your existing browser progress is attached to your account.

Content links

When you open an available platform, the system can record the content item, platform and page context that led to the click. The anonymous visitor identifier is not added to the external destination URL.

Site traffic

The site can record page URL, referrer, rough device type and a separate hashed visitor key for traffic statistics. Raw IP addresses and the progression profile identifier are not written to the traffic log.

No browser fingerprinting

The progression system does not require browser fingerprinting. The first-party identifier points to a server-side progress record.

Control

You can clear browser storage to stop this browser from reconnecting to its anonymous progress record. Account holders can sign out at any time.