Privacy Policy
Last updated: October 21, 2026
Browsing this website
SenMandarin is an educational website operated by Jason (杨森). This version does not provide user accounts, collect form submissions, process payments, or maintain a student database. We have not added advertising, third-party analytics, tracking pixels or marketing cookies.
Search and local interactions
Search runs in your browser using a static index served with the website. Library filters are reflected in the URL. The copy button writes the displayed WeChat ID to your clipboard only when you press it. The site does not read your clipboard.
Contacting Jason
If you choose to contact Jason through WeChat or email, the information you send is handled in that service. Share only the information needed to discuss lessons. WeChat and your email provider have their own privacy terms. Selecting an email link opens your email application; this website does not send or store your message. A message is not a confirmed booking.
Character practice and PDF downloads
The character studio loads stroke data from this website. Your entered text and writing are processed in your browser; there is no submission form or saved handwriting history. PDF worksheets are generated on your device. Requests for individual character data may appear in the hosting provider’s technical logs.
Hosting
Student videos, their preview images, selected material preview images and explicitly free learning PDFs are hosted on this website. Full paid PDF files are not hosted here. Videos play only when you choose to start them; there is no third-party video player or advertising service. For questions about a published video, contact Jason using the details below.
Cloudflare, our hosting provider, may process technical request information, such as IP addresses and request timestamps, to deliver and secure the site. Cloudflare Pages delivers this website. This website does not independently store those logs in a database.
Voluntary support
The support page does not process payments or accept public submissions. Receiving QR codes and their visible account labels are displayed with Jason's permission. Scan a code in its payment app, which operates under its own privacy terms. QR code views do not confirm a payment. Jason confirms contributions manually. This website does not publish supporters' names, messages, payment account details, transaction records or contact information. For questions about a contribution, please contact Jason using the details below.
Vocabulary lookup
Vocabulary searches run in your browser using word data served by this website. Search terms and filters appear in the page URL so you can revisit or share a result. This website does not submit searches to a dictionary or payment service.
Your questions
For questions about information you have shared directly with Jason, contact him through the WeChat details on the lesson page. Email: y996270903@163.com.
Changes
If new services or data collection features are added, this policy should be updated before those features are enabled.