Privacy Policy & Terms of Use

Last updated: 20 July 2026

This single page covers both how your data is handled (Privacy Policy) and the terms under which you may use this site (Terms of Use).

Privacy Policy

Overview

HSK Grammar Wiki (hskcompanion.org) is a free Mandarin Chinese grammar reference. This section explains what data is collected when you visit and how it is used.

Data we collect directly

There are no accounts and no sign-up forms on this site. Browsing the site requires you to provide nothing about yourself.

The one exception is the contact form, which you may choose to use. If you submit it, the name, email address, topic, and message you type are sent to the site owner by email so that your enquiry can be answered. This information is used only to reply to you. It is not added to any mailing list, not sold, and not shared with anyone else. You can avoid the form entirely by emailing BIP_Digital@proton.me directly.

Contact form processing

Two services are involved when you submit the contact form:

• Cloudflare Turnstile — a bot check that runs on the contact page to stop automated spam. It assesses signals from your browser to confirm you are a human. It is designed as a privacy-preserving alternative to traditional CAPTCHAs and is not used to track you across websites. See Cloudflare's privacy policy .
• Resend — the email service that delivers your message to the site owner's inbox. Your message and the email address you provide pass through Resend in order to be delivered. See Resend's privacy policy .

The site is hosted on Cloudflare Pages, which processes standard server request data (such as IP address) in order to serve pages and protect against abuse.

Advertising — Google AdSense

This site uses Google AdSense to display advertisements. Google may use cookies and similar tracking technologies to serve ads based on your prior visits to this and other websites.

Google's use of advertising cookies enables it and its partners to serve ads to you based on your visit to this site and/or other sites on the internet. You may opt out of personalised advertising by visiting Google Ads Settings .

For more information on how Google uses data from sites that use its services, see How Google uses information from sites or apps that use our services .

Third-party cookies

Third-party vendors, including Google, use cookies to serve ads based on a user's prior visits to this website or other websites. Users may opt out of third-party vendor use of cookies for personalised advertising by visiting aboutads.info .

Analytics

This site does not currently use any analytics or tracking tools beyond Google AdSense.

External links

Grammar pages may link to external resources. We are not responsible for the privacy practices of those sites.

Your rights (EU / EEA)

If you are in the European Union or EEA, the GDPR gives you the following rights over any personal data processed in connection with your visit:

• Access — request confirmation of what data is held about you.
• Erasure — request deletion of data held about you.
• Objection — object to processing based on legitimate interests.
• Restriction — request that processing be limited.
• Portability — where applicable, receive data in a portable format.

The legal basis for personalised advertising (Google AdSense) is your consent, given via the cookie banner on your first visit. You may withdraw consent at any time by clearing your browser's local storage or cookies. The legal basis for processing a contact form submission is your own request that we reply to you.

The data controller for this site is HSK Grammar Wiki, reachable at BIP_Digital@proton.me. You also have the right to lodge a complaint with your local data protection authority.

Terms of Use

Acceptance

By using hskcompanion.org you accept these terms. If you do not agree with them, please do not use the site.

What this site is

HSK Grammar Wiki is a free educational reference for learners of Mandarin Chinese. It is an independent personal project. It is not affiliated with, endorsed by, or connected to the official HSK examination programme, Hanban, or the Chinese International Chinese Education Foundation.

Accuracy and no guarantees

The content is written carefully and cross-checked against HSK course materials, but it is provided "as is" with no warranty of any kind. Grammar explanations are interpretations for study purposes, language use varies by region and register, and errors are possible. Nothing here is a guarantee of exam results. You use the material at your own discretion, and the site owner is not liable for any loss arising from its use or from the site being unavailable.

Found a mistake? Please report it — corrections are prioritised over everything else.

Intellectual property

The explanations, example sentences, illustrations, and exercises on this site are original work and remain the property of the site owner. You are welcome to use them for your own personal study, and to quote short passages with a link back to the source page. Republishing pages wholesale, or reproducing substantial portions of the content commercially or as part of another product, is not permitted without permission — just ask.

HSK is a trademark of its respective owner and is referred to here descriptively, to identify the examination levels the material corresponds to.

Acceptable use

You agree not to:

• attempt to disrupt, overload, or gain unauthorised access to the site or its services;
• use automated tools to scrape the site at a volume that degrades it for other users;
• submit unlawful, abusive, or deliberately misleading content through the contact form.

Advertising

This site is supported by advertising. Adverts are served by Google and their content is not chosen, written, or endorsed by the site owner. Any dealings you have with an advertiser are solely between you and them.

External links

The site may link to third-party resources for reference. Those sites are outside our control, and we are not responsible for their content, accuracy, or practices.

Changes and governing terms

Both the Privacy Policy and these Terms may be updated as the site evolves; the "Last updated" date above reflects the most recent revision. Continued use of the site after a change constitutes acceptance of the revised version.

Contact

Questions about this policy or these terms can be sent to BIP_Digital@proton.me, or through the contact form.