Privacy Policy

Who this is

This site (Khan Japanese) is a personal portfolio and a set of free Japanese-learning tools built and run by one individual (Sarantsatsral Ganzorig), not a company. This policy explains what happens to your information when you use it.

What I collect

If you never create an account, almost nothing is collected beyond standard web server activity (see "Hosting & logs" below). If you sign up, the following is stored, tied to your account:

• Email and password — handled entirely by Supabase, the authentication provider this site uses. Your password is never stored or visible to me in readable form; Supabase hashes it.
• Display name — auto-generated from your email when you sign up (the part before the @), shown next to any comments you post.
• Comments you post on portfolio project entries, and bookmarks you save.
• Messages you send through the "Send a Message" contact form.
• Study progress — which Word Match levels you've completed and your best time/moves, which Grammar Connect levels you've completed and your best time/mistakes, and which Dokkai Reader texts you've completed per track.

What I don't collect

No analytics or tracking scripts, no advertising networks, no third-party cookies, and no payment information run on this site — there's nothing to sell and nothing behind a paywall. The only stored data is what's listed above.

How it's used

Solely to make the site work: signing you in, saving your progress and comments across visits, showing your display name next to things you post, and letting me reply if you send a message. Nothing here is used for advertising, and I don't sell or share it with anyone for marketing purposes.

Who it's shared with

Supabase (supabase.com) is the database and authentication provider behind this site — it processes and stores your account data and content on my behalf, under its own privacy policy. GitHub Pages hosts the site's files and, like any web host, sees standard request logs (IP address, browser type) as a normal part of serving web pages — I don't separately access or collect these. No one else receives your data.

Cookies & local storage

Staying logged in relies on your browser's local storage holding a session token, managed by Supabase. This is functional, not tracking — it's not used to follow you across other sites or build an advertising profile.

Your rights

You can delete your own account and everything tied to it at any time — from your account menu once logged in, or by emailing me at the address below. Deleting your account removes your profile, comments, bookmarks, messages, and study progress; nothing is kept afterward.

Children's privacy

This site isn't directed at children under 13, and I don't knowingly collect information from anyone under that age.

Changes to this policy

If this policy changes, I'll update the date at the top of this page. Continuing to use the site after a change means you accept the update.

Contact

Questions about this policy or your data: ganzorig2003@gmail.com