Information we collect
This site has no registration, and it does not collect names or email addresses. Every page can be read without signing up.
Contact
We receive inquiries through Google Forms, a service provided by Google LLC. The name, email address and message you enter in the form are sent to Google LLC's service and received by the site operator.
We use this information only to reply to you and to correct the content of the site. We do not share it with third parties except where required by law. For how Google handles form data, see Google's Privacy Policy.
Access logs
This site is served by Vercel Inc. When you view a page, information such as your IP address, browser type, the page you viewed and the time is recorded on the servers that deliver the site. This information is used to deliver the site and keep it secure. For how Vercel handles this information, see Vercel's Privacy Policy.
Cookies and sending information to third parties
The site does not currently use cookies for advertising or analytics, and it has no tags that send user information to outside companies. The typeface (Noto Sans JP) is also served from this site rather than from an outside service.
Before we start using advertising or analytics, we will update this policy and describe on this page what information is sent, to which companies, for what purposes, and how to opt out.
Information stored in your browser
As a record of your progress, this site stores the articles you have read (the article page you opened and when) and your quiz results (the number of correct answers and when you took the quiz) in your browser's local storage. This record exists only in your browser. It is never sent to this site's servers or to any outside company. It does not carry over to a different browser or device.
You can see the record on the Your progress page and delete all of it at any time with "Clear the record" on that page. Deleting this site's data in your browser settings also removes it.
The site stores no other information in your browser.
Changes
This policy may be changed when we add features to the site or when laws change. When it changes, the last updated date on this page is updated.
Operator and contact
This site is operated by Derivatives Compass. For questions about this policy, please use the Contact page.