Cookie Policy
Version 2026-09-01
This lists everything Nexelia stores in your browser. Most of it is needed to run the site and does not ask permission. One thing — Google Analytics — is optional, and we do not load it at all unless you accept.
Cookies
| Name | Set by | What it does | How long | Strictly necessary? |
|---|---|---|---|---|
| sb-<project>-auth-token (and .0 / .1 chunks) | Nexelia (Supabase Auth) | Keeps you signed in. Without it you would be signed out on every page. | Up to 400 days, refreshed as you use the site | Yes |
| nex_cookie_consent | Nexelia | Remembers your choice on this page, when you made it, and which version of this policy you saw. This is how we avoid asking again. | 6 months | Yes |
| nex_preview | Nexelia | Lets the team view the site while it is closed to the public. | 7 days | Yes |
| dev_auth | Nexelia | Gate for internal development pages. | Until the browser closes | Yes |
| cdnis (course wall) | Nexelia | Unlocks a password-protected course. | Until the browser closes | Yes |
| _ga, _ga_<id> | Google Analytics | Counts visitors and which pages they read, on our public pages only. Set ONLY if you press Accept, and never inside the product or when you are signed in. | 400 days | No — needs your consent |
Stored in your browser
These are kept by your browser rather than sent to us with each request. They hold your place in a chapter and small interface preferences.
| Name | Set by | What it does | How long | Strictly necessary? |
|---|---|---|---|---|
| nexelia_recent_pages | Nexelia | Recently viewed pages, for the quick-search palette. | Until you clear your browser | Yes |
| nexelia_trial_usage | Nexelia | Counts free-trial usage so the limit works. | Until you clear your browser | Yes |
| learn_index_*, chapter_done_*, studio:last:*, ia_* | Nexelia | Remembers where you were in a chapter and what you finished. | Until you clear your browser | Yes |
| tutor-panel-width, nexelia:featured-badge, achievements-last-visit | Nexelia | Small interface preferences, like how wide you dragged a panel. | Until you clear your browser | Yes |
Other tools that set no cookies
We use Sentry to record technical errors so we can fix them. It stores nothing in your browser.
Changing your mind
You can change your choice at any time, and withdrawing is as easy as accepting was. If you withdraw, we delete the Google Analytics cookies as well as stopping any further collection.
See also our Privacy Policy and Terms of Service.