Start with a local question. Keep the network, language, and delivery settings separate so the result tells you something useful.
Use a mainland China scenario explicitly
For China localization, record the Simplified Chinese interface, selected market, and observed country. Keep Hong Kong and Taiwan comparisons as separate routes and locales. A Chinese-language page alone cannot tell you which market the application selected or where the connection exited.
Separate reachability from account eligibility
Test a permitted public endpoint before a China storefront journey, then record redirects, HTTP outcomes, and any login requirement. A working proxy connection does not supply a local account, phone number, payment method, or permission to use a service. Diagnose those application requirements separately.
Inspect province and city selection in the form
Use a China test address supported by your own service to exercise province, city, and district controls. Keep the selected address with the response. A country route does not establish city-level targeting, and a national product page cannot prove delivery to every destination.