Privacy policy

Last updated: 3 August 2026

What this site is

This is a personal website with a small community forum, operated by Zhouzhou Zhang("we", "us"). This policy explains what personal data the site processes and why.

Data we collect

• Account data — when you register: username, email address and a hashed password. If you sign in with Google, we receive your email address and profile picture from Google instead of a password.
• Profile content — anything you add yourself: bio, profile photo, forum posts, blog likes.
• Activity data — for signed-in members who have accepted the cookie notice, we record time spent on the site (session start/end times) to show streaks and community statistics. Guests are not tracked.
• Technical logs — the web server keeps short-lived rotating logs (including IP addresses) for security and debugging.

Cookies

The site sets one cookie: session_token, a strictly necessary authentication cookie that keeps you signed in for up to 7 days. There are no advertising or third-party analytics cookies.

How data is used

Data is used only to run the site: authentication, showing your profile and posts, email verification, and aggregate statistics (member counts, hours spent). We do not sell data or share it with third parties, except Google when you choose Google sign-in, and our hosting infrastructure.

Retention and your rights

• Account data is kept until you delete your account.
• You can edit your profile at any time from the dashboard, and delete your account there too — deletion removes your account, sessions, activity records and likes.
• You may request access to, correction of, or erasure of your data at any time by emailing 2665252194zzz@gmail.com.

Changes

If this policy changes materially, the date above will be updated and a site announcement will be posted.