Privacy

How this site handles the information you share.

The reading search and scripted conversation run in your browser. The tongue observation tool describes the choices you make locally; it does not upload a tongue photo for diagnosis. This site has no contact form. Cloudflare hosts this website and may process IP addresses, request URLs and browser information to deliver and secure it. See Cloudflare’s Privacy Policy.

Website analytics and partner tracking

Google Analytics 4 and impact.com partner measurement are optional and off by default. Use Privacy choices in the footer to enable either service separately, or turn both off. Google Analytics measures page views and general interactions. impact.com may transform partner links and measure impressions on the home page. If you enable a service, it may use cookies and receive page, browser or device information. Your preference is stored locally for up to 180 days. Changing it reloads the page so the new choice applies to subsequent requests. Previously collected information is not recalled, and vendor cookies already stored may need to be removed in your browser settings. The photo tool pages do not load these services or save privacy preferences. See Google’s Privacy Policy and impact.com’s Privacy Policy for information about their data handling.