Privacy Policy

崔顺彪 (Cuishunbiao / Ethan Cui), an individual based in China, operates https://cuishunbiao.com and is responsible for personal information handled by this website. Contact cuishunbiao@gmail.com for privacy questions or requests.

• Correspondence: your email address, name if supplied, and messages when you contact us.
• Technical information: network addresses, browser and device information, requested pages, timestamps, and errors processed by hosting, analytics, or security services.
• Restricted accounts: administrator usernames, password hashes, and authentication sessions for authorized administrators. Public browsing does not require registration.
• Local preferences: theme choices and, where used, learning progress and speech preferences stored in your browser.
• Purchases, if made: order references, contact details, payment status, and amounts needed for support. Waffo Pancake processes payment card information for its checkout; full card numbers are not stored on this website. We keep payment and refund event references, amounts, and timestamps to reconcile coffee support and handle billing requests.

We use information to deliver requested services, respond to messages, administer access, investigate technical issues and abuse, understand website traffic, and meet legal obligations. Where applicable, the basis is performance of a contract for purchased services, legitimate interests in operating and protecting the website, legal obligations, or consent when required for optional tracking or communications.

The website uses an authentication cookie for administrator sessions and browser storage for preferences. Google Analytics measures visits and Google AdSense supplies advertising. These Google services may use cookies, device identifiers, IP addresses, and browsing activity to measure use, prevent fraud, or personalize ads. Advertising providers may combine information with activity on other websites.

You can block or delete cookies and clear local storage in your browser; doing so may reset preferences or interrupt sign-in. Manage personalized advertising through Google My Ad Center and analytics collection through the Google Analytics opt-out tool. See Google’s Privacy Policy and how Google uses information from partner sites.

The website uses Firebase / Google Cloud for stored website content and restricted account data, Cloudinary for uploaded media, and Google for analytics and advertising. If you purchase through Waffo Pancake, payment and transaction information is handled by Waffo Pancake. These providers receive information needed for their functions under their applicable terms. We may also disclose information when legally required or necessary to investigate misuse. We do not operate a business selling contact lists; advertising providers may process tracking information under their own policies.

Browser preferences remain on your device until you clear them; administrator session cookies expire after seven days unless renewed. Other records are retained for as long as needed to provide the service, resolve requests, secure the website, or satisfy legal recordkeeping requirements, then deleted or anonymized. Third-party analytics, advertising, and payment records follow the relevant provider’s retention settings and legal obligations. Contact us to request deletion of records we control.

We use restricted administrator access, password hashing, and secure session cookies in production. No online system offers absolute security. Our cloud and payment providers may process information outside your country, including in the United States. Applicable privacy requirements govern those transfers. We will notify affected people and authorities of reportable incidents as required by law.

Depending on applicable law, you may request access, correction, deletion, a portable copy, limits on processing, or withdrawal of consent, and may object to certain processing. Send requests to cuishunbiao@gmail.com; we may ask for information necessary to verify your identity. We aim to respond within thirty days, subject to applicable statutory deadlines. Some records must be retained for legal reasons. You may complain to your local privacy regulator. For Google advertising and analytics choices, use the controls linked above.

We do not knowingly collect children’s personal information, and paid purchases are intended for adults aged eighteen or older. If a child has sent personal information to us, a parent or guardian can contact cuishunbiao@gmail.com to request its removal.

Project links and other external websites have their own privacy practices. Information sent directly to those services is governed by their policies. This website does not offer a marketing mailing-list subscription; messages you send are used to respond to your inquiry and related service matters.

We will publish changes here with an updated version and effective date. Material changes affecting an ongoing service will also be communicated through that service or its contact email where available. For questions, data requests, or privacy concerns, contact 崔顺彪 (Ethan Cui) at cuishunbiao@gmail.com.