Last updated: 2026-07-12
This page lists information that may be sent from a user's device to third-party providers when this site uses analytics or affiliate links.
| Recipient | Information sent | Purpose | Status |
|---|---|---|---|
| Google LLC Google Search Console |
No direct browser-side tag is installed for Search Console. | Search performance monitoring and SEO improvement. | Active |
| Google LLC Google Analytics 4 |
Cookie identifiers, viewed pages, referrers, browser and device information, click events, quiz start and completion events. | Analytics, usage understanding, quiz feature improvement, and site navigation improvement. | Active |
| Amazon.com, Inc. / Amazon Japan G.K. Amazon Associates |
Affiliate link click information, destination URL, browser and device information. | Affiliate conversion measurement and advertising reward attribution. | Not used on English pages. Amazon affiliate links may remain on Japanese pages. |
| Udemy, Inc. / affiliate service providers | Learning-resource link click information, destination URL, browser and device information. | Affiliate conversion measurement and learning-resource navigation improvement. | Active when an affiliate learning-resource link is clicked. |
GA4 is configured with IP anonymization, Google Signals disabled, and ad personalization signals disabled. Quiz history and saved questions remain in localStorage and are not sent to this site's server.
If new analytics, advertising, or affiliate services are added, this page will be updated with the recipient, information sent, and purpose.