Updated 14 October 2026 · Version 2026-10-14
Cookie Policy
The few cookies and browser settings Only70 uses.
The short version
Only70 uses only what is strictly necessary to sign you in and remember your display choices. We use no analytics, advertising or tracking cookies, so we don't need to ask for cookie consent.
Cookies we set
| Name | Purpose | Lasts |
|---|---|---|
__Host-atlas_session | Keeps you signed in. Secure, http-only, same-site, so other sites and page scripts can't read it. | 7 days (12 hours for admins), or until you sign out. |
__Host-atlas_mfa | Remembers, for a few minutes, that you are halfway through two-step login. | 5 minutes. |
Both are strictly necessary: the site's sign-in can't work without them.
Saved in your browser
| Name | Purpose | Lasts |
|---|---|---|
atlas-theme | Your light or dark theme choice. | Until you clear your browser data. |
atlas-track | Whether you were last studying the Core or Exam-Ready track. | Until you clear your browser data. |
only70-last | The last chapter you opened, so the home page can offer “Continue”. | Until you clear your browser data. |
These stay on your device and are never sent to us.
Third parties
Fonts and scripts are served from our own site. The only third-party code is Cloudflare Turnstile, which loads only when we need to check that a sign-in or sign-up is made by a person, and the Cashfree checkout, which loads only when you choose to pay. Each may process information about your browser and device, and Cashfree may set cookies it needs to take the payment safely; see Cloudflare's and Cashfree's privacy policies.
Your choices
You can block or delete cookies in your browser settings, but you won't be able to sign in without the session cookie.