privacy policy

Last updated: June 13, 2026

This privacy policy describes how 9niche (9niche.com, hereinafter referred to as "this site") handles users' personal information. Please read this policy carefully before using this site. Continued use of this site is deemed to be agreement to this policy.

1. Information collected by this site

• Calculation tool information：All calculations (such as mortgage, compound interest, tax returns) are completed locally in the user's browser. The server of this site will not receive sensitive information such as input amount, interest rate, salary, etc.
• Anonymous access log：The web server automatically logs IP (partially masked), browser model, visited pages, timestamps. Used for debugging and traffic analysis, not for personal identification.
• Cookies and local storage：Used to remember language preferences, dark mode, and quiz progress. Can be cleared at any time in browser settings
• Feedback form：If the user actively fills in the form, he/she will receive the email and message content, which is only used for reply and service improvement.

2. Third party services

This site uses the following third-party services, each of which has its own privacy policy:

• Google Analytics — Anonymous traffic analysis（policies.google.com/privacy）
• Google AdSense — Ad serving, cookies will be used to personalize ads。permeable adssettings.google.com control
• Cloudflare — CDN and DDoS Protection

3. Data retention and deletion

This website does not actively create user accounts, nor does it retain personally identifiable information for a long time. Log data will be automatically deleted after 90 days.

4. your rights

• Know what information this site holds about you
• Request correction or deletion
• Withdraw previous consent

To exercise the above rights, please write to [email protected] and we will reply within 30 days.

5. Cookie control

You can block or delete cookies in your browser settings, but some features (such as language switching, test progress) will not work properly.

6. Policy revision

If there are any major changes to this policy, we will announce it on this page and update the "Last updated" date. Regular review is recommended.

Related pages: About us · Disclaimer · Contact us