Privacy
This privacy notice explains how Chinese Copilot's free HSK Placement Test handles information when you use the recognition check. The product is designed to stay lightweight on personal data. There is no account system, no login, no email signup wall, and no profile database on our side that stores your vocabulary answers. Product context lives on the about page; support scope is described on contact.
Session storage
Test answers and in-progress state are kept in your browser's sessionStorage for the current tab session. That lets you refresh mid-test without losing progress, but closing the tab or clearing site data removes the answers. We do not sync answers to a cloud account, and we do not require you to create a username. If you open the site in a private window, treat that session as ephemeral by design.
The HSK 2.0 and HSK 3.0 tests keep separate session entries, and the HSK 3.0 test also stores the randomly drawn word list for your run so the results page can be recomputed. The app does not store answers or preferences in localStorage.
Cookies and similar tech
The tests work without cookies. Google Analytics, described below, sets its own first-party cookies on this site. We do not use advertising cookies. The hosting platform or edge network may set strictly functional cookies or use similar request identifiers for security, load balancing, or abuse prevention.
Analytics
We use Google Analytics 4 to see how the site is used in aggregate, for example which pages are visited and how people arrive. It records a page view for the pages you visit on this site, along with the information Google Analytics collects with each visit, such as the page address and title, the referring site, browser and device type, and approximate location derived from your IP address. It sets cookies (_ga and _ga_*) that tell a returning browser apart from a new one, without your name or email. The words you mark as known and your results are not sent to Google Analytics: page addresses on this site do not contain your answers.
Google processes this data under its own privacy policy. You can block or delete these cookies in your browser settings, or use Google's Analytics opt-out browser add-on; the tests keep working either way.
We do not sell your data
We do not operate a learner CRM from this app, we do not sell answer content or personal profiles, and we do not share your recognition responses with advertisers for targeting. If that stance ever changes in a material way, we will update this page before collecting new categories of personal data for those purposes.
Hosting
The site is typically served via Vercel (or a similar host). Hosts may collect standard request logs and platform analytics — for example IP address, user agent, approximate geography derived from IP, referrer, and request paths — under their own privacy policies. We do not use those logs to reconstruct individual learners' vocabulary answer keys or to publish identifiable result pages. Your recognition answers are not uploaded to a shared results backend; they stay in the browser session as described above.
Children's note
The product is a general educational tool. It is not directed at children under 13 as a social network or messaging service, and it does not knowingly collect contact details from children. If you are a parent or guardian and believe a child provided personal information in connection with this site, see the contact page for how Chinese Copilot describes support scope for this free tool.
Updates
Privacy questions about this notice are covered by the same support scope described on contact. For methodology and product limits, see about and the blog. This notice may be updated as the product evolves; the live page on this site is the current version.