Basic visits and sessions
After active permission, Google Analytics measures page visits, referring sites, browser/device category, language, visit time, and session information to help improve website content and usability.
PRIVACY & YOUR CHOICE
Understand what is used, what is optional, and how to change your mind.
Effective 6 November 2026This notice covers website visit analytics and privacy choices on the Zhengzhong website: the optional information involved, its purpose, and how to decline or withdraw.
Enquiries, contracts, and fulfilment records that you send by email, WeChat, or another channel are outside this notice. Their handling and retention rules will be determined separately. Existing prices and service commitments are unchanged.
Contact this address about website analytics or privacy choices. Describe your request first; do not send passwords, payment card details, identity documents, or unrelated sensitive information.
After active permission, Google Analytics measures page visits, referring sites, browser/device category, language, visit time, and session information to help improve website content and usability.
Analytics may use browser identifiers in cookies and network-request information to derive approximate location. These data are not fully anonymous and are not precise GPS location.
Advertising personalisation, enhanced measurement, and automatic form collection are off. Names, phone numbers, email addresses, quote inputs, and enquiry summaries are not sent to analytics.
Analytics uses fixed page addresses without query strings or fragments. Referrers are limited to the referring site, excluding paths and query contents.
The existing calculator runs in your browser. Your analytics choice does not affect quoting. Sending an enquiry by email or WeChat is a separate communication initiated by you.
Withdrawal does not automatically delete previously transmitted records; contact the privacy email for requests. A different device, cleared storage, expired preference, or a material change in purpose requires a new choice.
| Item | Period | Purpose and limits |
|---|---|---|
| Privacy preference | Up to 180 days | Browser-local storage of choice, version, and timestamps, without names or contact details. |
| GA4 cookies | Up to 180 days; no renewal on new visits | Used only with permission. Corresponding controlled cookies are cleared on withdrawal. Browsers may impose shorter limits. |
| GA4 user/event data | 2 months; reset on new activity off | Subject to Google’s deletion cycle. Standard aggregated reports are not covered by this setting; it does not mean all analytics data are deleted after two months. |
This notice does not set or trigger deletion periods for enquiries, contracts, or fulfilment records.
Analytics is provided by Google Analytics. Data may be processed in countries or regions different from yours. Read how Google uses information from partner sites and the Google Privacy Policy.
GitHub Pages hosts the website. Requests for page delivery and security may involve IP addresses, browser information, access times, and request addresses; see the GitHub Privacy Statement. The existing Chinese home page also requests Google Fonts. Declining GA4 does not block these existing page-resource requests.
The analytics configuration does not enable advertising features or collect quote contents. When you open email, WeChat, or other external services, their providers’ policies apply separately.
Change your choice through “Analytics preferences,” or contact shiyi@zhengzhong.tech about access, correction, or deletion of website analytics information relating to you. We may need to verify identity and request scope to avoid disclosure to unrelated people.
A browser choice does not automatically delete emails, contracts, or historical data on Google servers. Handling deletion requests also depends on identifiability and applicable requirements.
Version and effective date: 6 November 2026. Material changes to the purpose or scope of analytics will be accompanied by an updated notice and a new choice.