Privacy Policy

What We Collect

This site does not require registration, login, or any personal information. You can browse all content anonymously. We collect only anonymous, non-personally-identifiable usage data to understand how the site is used and to improve it. This includes:

Pages visited and time spent on each page
Scroll depth and content engagement (e.g., whether a lesson was read fully)
Quiz scores and per-question results (not tied to any identity)
Device type (mobile, tablet, or desktop) and browser user agent string
Referral source (how you arrived at the site)

All analytics data is tied to a temporary session identifier that is discarded when you close your browser tab. We do not track users across sessions or devices.

Analytics Services

We use the following third-party services to help us understand site usage:

Vercel Analytics — collects anonymous page view data. Vercel Analytics Privacy Policy
Vercel Speed Insights — measures page load performance (Core Web Vitals). Learn more
Microsoft Clarity — provides session recordings and heatmaps to help us understand how visitors interact with the site. Clarity may use cookies to identify returning sessions. Microsoft Clarity Terms

Cookies & Local Storage

This site uses minimal browser storage:

Theme preference — your light/dark mode choice is saved in your browser's local storage so it persists between visits.
Session identifier — a random ID stored in session storage (cleared when you close the tab) used to group page views within a single visit.
Microsoft Clarity cookies — Clarity may set cookies to support session replay and heatmap functionality.

Third-Party Sharing

We do not sell, trade, or share any personally identifiable information with third parties. The anonymous analytics data described above is processed by the third-party services listed, each governed by their own privacy policies linked above.

Children's Privacy

This site does not knowingly collect any personal information from anyone, including children under 13. Since no personal data is collected, no special provisions are required under COPPA.

Changes to This Policy

If this privacy policy is updated, the changes will be posted on this page.

What We Collect

Pages visited and time spent on each page

Scroll depth and content engagement (e.g., whether a lesson was read fully)

Quiz scores and per-question results (not tied to any identity)

Device type (mobile, tablet, or desktop) and browser user agent string

Referral source (how you arrived at the site)

All analytics data is tied to a temporary session identifier that is discarded when you close your browser tab. We do not track users across sessions or devices.

Analytics Services

We use the following third-party services to help us understand site usage:

Vercel Analytics — collects anonymous page view data. Vercel Analytics Privacy Policy

Vercel Speed Insights — measures page load performance (Core Web Vitals). Learn more

Microsoft Clarity — provides session recordings and heatmaps to help us understand how visitors interact with the site. Clarity may use cookies to identify returning sessions. Microsoft Clarity Terms

Cookies & Local Storage

This site uses minimal browser storage:

Theme preference — your light/dark mode choice is saved in your browser's local storage so it persists between visits.

Session identifier — a random ID stored in session storage (cleared when you close the tab) used to group page views within a single visit.

Microsoft Clarity cookies — Clarity may set cookies to support session replay and heatmap functionality.