This page describes the cookies and similar technologies Atlas uses on onatlas.world. It is written to complement — not replace — our Privacy Policy.
What are cookies?
A cookie is a small text file that a website stores in your browser so it can remember you between page loads and visits. First-party cookies are set by the site you are visiting. Third-party cookies are set by a different domain embedded in the page (advertising, analytics, embedded content). Atlas does not use third-party cookies for advertising.
Essential cookies
Essential cookies are required to sign in, keep you signed in, and protect the app against abuse. You cannot turn them off, because Atlas will not function without them.
| Cookie | Purpose | Lifetime |
|---|---|---|
next-auth.session-token__Secure-next-auth.session-token | Signed-in session (NextAuth). Written after you complete a sign-in flow. | 30 days |
next-auth.csrf-token | CSRF protection for authentication requests. | Session |
next-auth.callback-url | Remembers where you were headed before we bounced you to sign in, so we can return you there. | Session |
landing-preview | Set only during the private-preview period, if any. Grants access to the marketing landing page when the site is behind a preview gate. | 30 days |
atlas_cookie_prefs | Your cookie preferences (this policy). Set the moment you make a choice. | 12 months |
Analytics & error tracking
These are optional and off by default. They only activate after you accept them in the cookie banner or preferences modal.
| Provider | What it does | Storage |
|---|---|---|
| Sentry | JavaScript error reporting and a low-sample-rate session replay (currently 5% of sessions, plus every session that experiences an error). Recordings mask input fields and text content by default. We use it to reproduce and fix bugs. | sessionStorage, localStorage keys prefixed with sentry. |
We do not use Google Analytics, Google Tag Manager, Facebook Pixel, Mixpanel, PostHog, Hotjar, Fullstory, Segment, or any advertising or cross-site tracking pixels. If we ever add another analytics provider, we will list it here and require your consent before activating it.
Similar technologies
A few UI preferences are stored in localStorage so the app remembers them across visits — for example, the grid size on the Media Library, the story view mode, and the last-selected map layer. These are strictly UI convenience and never leave your device.
Your choices
You have three ways to control non-essential cookies:
- The banner shown on your first visit lets you accept or decline optional cookies with one click.
- The preferences modal lets you toggle each category individually. You can open it any time by clicking below or in the footer of any marketing page.
- Your browser can block cookies from onatlas.world entirely. If you do so, the site will not remember you between visits and you may not be able to sign in.
Changes to this policy
When we add, remove, or change a cookie, we update this page and bump the "Last updated" date at the top. If a change materially affects your consent choices — for example, we introduce a new optional category — we will reshow the banner so you can reconsider.
Contact
Questions about this policy go to [email protected]. Broader data questions are covered by our Privacy Policy.