Privacy Policy
We don't collect your data. Here's the honest detail.
Last updated: June 2026
The short version: this site doesn't collect personal information about you. There's no account to create, no mailing list, and no tracking.
What we don't do
- We don't ask you to create an account or sign in.
- We don't run a newsletter or collect email addresses.
- We don't place advertising or tracking cookies, and we don't use you-identifying analytics. The study tool saves your progress locally in your browser using localStorage — this data never leaves your device.
- We don't sell, rent, or share personal information — we don't have any to share.
A few things worth naming honestly
- Cloudflare Pages (our host). This site is served through Cloudflare Pages. Like any web host, Cloudflare may retain standard short-lived technical logs — such as IP addresses — for security and performance. We don't use those logs to identify or track you. Cloudflare's own privacy policy applies to their handling of this data.
- Affiliate links. When you click a link to an outside store (for example, Amazon), that store may set its own cookies to credit the referral. Those cookies and any data they collect are governed by that store's privacy policy, not this one. See our Affiliate Disclosure for more.
Cookies and browser storage
We don't set tracking cookies of our own. The study tool uses your browser's localStorage (not cookies) to save your study progress, username, and exam history directly on your device. This data never leaves your device and is never sent to our servers — it exists only in your browser. You can clear it at any time in your browser settings, though doing so will reset your study progress.
Your California privacy rights (CCPA/CPRA)
If you live in California, you have the right to know what personal information we hold about you, to request deletion or correction of it, and to opt out of the sale or sharing of your personal information. We do not collect, sell, or share personal information, so there is effectively nothing to access, correct, or delete. You will not be treated differently for exercising any of these rights. Questions? Use the contact page.
Visitors from the EU and UK (GDPR)
If you are in the European Economic Area or the United Kingdom, you have rights under the GDPR including the right to access, correct, delete, restrict, or object to the use of your personal data, and the right to data portability. Because this site does not collect personal information from visitors, those rights have limited practical application here. Where third-party processors (Cloudflare) handle incidental technical data as described above, their own policies and data-transfer safeguards apply. Questions? Use the contact page.
Children
This is a general-audience study site and we don't knowingly collect information from anyone under 13.
Changes & questions
If this policy ever changes, we'll update the date at the top of this page. Questions? Use the contact page.
Font credits
The typefaces on this site are served from our own server and are licensed under the SIL Open Font License, Version 1.1:
- Fraunces — Copyright 2020 The Fraunces Project Authors (github.com/undercasetype/Fraunces)
- Hanken Grotesk — Copyright 2021 The Hanken Grotesk Project Authors (github.com/marcologous/hanken-grotesk)
- JetBrains Mono — Copyright 2020 The JetBrains Mono Project Authors (github.com/JetBrains/JetBrainsMono)