Privacy Policy
About this notice
This notice applies to yutengfei.com and www.yutengfei.com, the personal website of Andrew David W.Y. (蔚腾飞). For privacy questions or requests, contact info@weitengfei.com. Updated September 30, 2026.
Browsing and hosting
Pages and media are hosted on Alibaba Cloud OSS in Hong Kong. Delivering a page involves processing network request information, such as your IP address and requested resource. Hosting services may process access or security logs under their service settings.
Audience measurement
This website loads Google Analytics 4 (measurement ID G-KN58TQFLER) to understand visits and improve content. Google may process page views, referring pages, device and browser information, approximate location and interaction events. Analytics cookies, including _ga and _ga_ identifiers, can distinguish browsers and visits. GA4 does not log or store IP addresses, although IP addresses are processed when a request is received.
Browser controls
Analytics loads when you open a page. This website does not show a consent banner. You can block analytics requests with browser privacy controls or use the Google Analytics opt-out browser add-on. Deleting cookies does not retract data already sent.
Other local storage
Reading progress, language and interface preferences may be stored locally by site features. Clearing browser storage can reset these settings. These settings are separate from analytics cookies.
Recipients, location and retention
Google processes analytics information outside the hosting environment and may process it in other countries. See Google’s explanation for partner sites and Google’s privacy policy. The site code does not enable advertising personalization. Analytics event retention and account-level data sharing are controlled in the GA administration console; this notice does not promise an unverified fixed retention period. Contact us for details or a deletion request.
Contact and external links
If you email us, your address and message are used to respond and handle your request. External sites have their own privacy practices. We do not intentionally send the contents of email correspondence to Google Analytics. Please avoid including sensitive personal information in URLs or unnecessary details in messages.
Your requests and updates
You can contact us to ask about data processing, request access or deletion where applicable, or raise a concern. We may need enough information to locate the relevant records and verify the request. We will update this page when the practices described here change.