Privacy

Operator and contact

Xiaojun Kong
Yanjiao Qingnianshequerqi
Langfang, Hebei, 065201
China

[email protected]

Local calculation

Benefit inputs are calculated locally in your browser. This tool does not send or save them. No cookies, advertising or localStorage are used.

Cloudflare Web Analytics

We use Cloudflare Web Analytics for aggregate statistics about visits, traffic sources and performance, without cookies, personal identifiers, cross-site tracking or fingerprinting. Cloudflare, Inc. acts as processor. The legal basis is our legitimate interest in understanding site usage and improving performance (Art. 6(1)(f) GDPR). The only third-party script is this analytics script, loaded from https://static.cloudflareinsights.com/beacon.min.js; fonts and calculation scripts remain local. Measurements are sent to Cloudflare; calculator inputs are not included in these statistics.

Cloudflare technical logs

Cloudflare hosts this site and processes technical request data, including IP address, request time and user agent, for delivery, security and abuse prevention. Visits are not completely anonymous. Retention follows applicable Cloudflare service policies; we do not promise a fixed retention period. Processing may take place outside your country, including in the USA.

Cloudflare privacy policy. Contact the operator about applicable privacy rights. Emails are used to answer inquiries and retained as needed for that purpose and legal requirements. External links have their own privacy policies.