Privacy | Study Japanese 101

We collect as little as we can. Newsletter emails live in a private Cloudflare KV namespace. We do not sell addresses.

Study Japanese 101 is a static editorial site with a small Worker in front. Most pages do not collect personal data.

If you subscribe on /newsletter, we store:

the email address you typed
the time of signup
that you checked the consent box
that the source was the newsletter form

Records sit in a private Cloudflare KV namespace on our account. The lookup key is a hash of the email so we can find or delete a record without listing the whole book in the site files. Addresses are not committed to the repository and are not written to application logs.

We use the address only to send occasional study letters from Study Japanese 101. There is no Mailchimp, ConvertKit, or other list vendor in this setup.

Unsubscribe is on the same page. That deletes the KV record.

Cloudflare Turnstile checks that a person, not a bot, submitted the form. The Turnstile token is verified on the Worker. We do not use the token for marketing.

Outbound visits

/go/ routes send you to an allowlisted official host. They do not currently store personal data or query parameters.

Logs and analytics

Cloudflare may collect standard request logs and zone analytics (path, status, country, user agent). We do not run a third-party marketing pixel. If Cloudflare Web Analytics is enabled on the zone, it measures visits without using advertising cookies.

Contact

Questions about stored emails: use the unsubscribe form, or write through the About page contact path once one is published. Until then, remove yourself from the newsletter form.