Last updated 17 July 2026
Cookie Policy
Cookies are small files a website stores on your device. We keep ours to a minimum: the ones we can't do without, and — only if you agree — analytics cookies that would help us improve the site. We never use advertising or marketing cookies. This page lists every one and lets you change your mind whenever you like.
What cookies are
A cookie is a small piece of text a website asks your browser to store. Some are strictly necessary — without them you couldn't log in or stay logged in — and the law lets us set those without asking. The only other kind we would ever use is analytics, and that needs your consent first and stays switched off until you give it. We do not use advertising or marketing cookies at all. We treat other on-device storage (such as remembering your light/dark theme) the same way.
Today we set no analytics cookies at all, and never any advertising cookies. The analytics choice below is still live: if we ever add such a tool, it will stay off until you turn it on here.
The categories we use
Essential
Always onNeeded for the site to work — signing you in, keeping you signed in, and remembering your cookie choice. These are always on and cannot be switched off.
Analytics
Off by defaultWould help us understand how the site is used — which pages are visited and where people get stuck — so we can improve it. Off unless you turn them on.
The cookies we set
Every cookie and stored value we use today, and why.
| Name | Provider | Category | Purpose | Stored for |
|---|---|---|---|---|
| arcstone_cookie_consentCookie | Arcstone Tutors | essential | Remembers your cookie choices so we do not ask again on every page. | 6 months |
| sb-<project>-auth-tokenCookie | Supabase (our login provider) | essential | Keeps you securely signed in as you move between pages. Only set once you log in. | Until you sign out, then it expires |
| themeLocal storage | Arcstone Tutors | essential | Remembers whether you chose light or dark mode. | Until you clear it |
Changing your choices
You can review or change your consent at any time — turning things off is as easy as turning them on. We ask again after 6 months so your choice never goes stale. You can also clear cookies in your browser's settings at any point.
Cookies are set by Arcstone Tutors. For how we handle your personal data more broadly, see our Privacy Policy.