Privacy policy

Effective October 8, 2026. This describes the current site configuration and must be reviewed when data flows change.

Current data flows

The site serves static pages. It has no accounts, comments, order uploads, subscription forms, advertising scripts or affiliate attribution enabled. It does not send scenario inputs to a server; the current version presents fixed examples rather than an input tool.

Hosting and security

A hosting provider may process requests and technical information such as IP address, requested URL, browser information, and security logs when serving pages. Published pages are hosted by Cloudflare. The operator is Shenzhen Hailink Technology Co., Ltd., based in Shenzhen, China. See Cloudflare's privacy policy for its own practices.

External sites and contact

Following an external link takes you to a separate service with its own policies. If you email us, your email provider and ours process that communication. Do not send order exports, credentials, identity documents, or bank details.

Website analytics

We use Cloudflare Web Analytics on the production domain to understand page views and site performance. Its performance beacon reports page URLs without query strings, referrers, browser and device characteristics, and timing metrics. Cloudflare states that the beacon does not use cookies or browser storage and does not fingerprint individual visitors. Cloudflare still processes network requests to provide this service. See Cloudflare analytics collection details. You can block the analytics script in your browser and continue reading the site.

Future advertising

Advertising is disabled. Before enabling it, this policy and the applicable consent and choice mechanisms must reflect the actual providers and regional requirements. A development preview does not request real ads.

For contact and operating-subject details, see Contact.