Privacy Policy
Established: September 10, 2026
Operator
- Operated by
- Chikyu to Nakayoshi (a Japanese general incorporated association)
- Operated sites
- BlueHub（bluehub.jp）、chat.bluehub.jp、lab.bluehub.jp、quiz.bluehub.jp、event.bluehub.jp、learn.bluehub.jp、volunteer.bluehub.jp and related domains
- Contact
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Information We Collect & Cookies
Our sites may collect the following information.
- Cookies and access logs via Google Analytics 4 (GA4) for analytics purposes (pages viewed, time on page, referrer, device information; we do not collect directly identifying information such as name or address)
- Our own first-party cookie that remembers your display language (Japanese, English, Chinese)
- If you use LINE login on chat.bluehub.jp (Earth Session), identifiers linked to your LINE account (used to provide the service and manage usage history)
Purpose of Use
Information collected is used to understand site usage, improve content, maintain your display language, and provide our services. It is not used for any other purpose.
Third-Party Sharing
We use Google Analytics 4 (by Google) for access analysis; information collected via cookies is sent to Google. For details, see Google's Privacy Policy. Beyond this, we do not sell or provide collected information to third parties.
Disabling Cookies
You can disable cookies through your browser settings. You can also opt out of Google Analytics tracking using the Google Analytics Opt-out Browser Add-on provided by Google. Note that disabling cookies may prevent some features (such as remembering your display language) from working correctly.
Changes to This Policy
This policy may be revised without notice in response to changes in law or our services. Revisions take effect once posted on this page.