Cookie policy
Last updated: 31 August 2026
This page lists everything Curious Koko stores in your browser. There is less of it than on most sites, because the game has no analytics, no social widgets and no tracking pixels.
The difference between the game and these pages
Two things live at this address, and they behave differently:
- The game, at the front page. It sets no advertising cookies at all. It uses local storage for your save file, and a Firebase authentication cookie to keep you signed in if you chose to sign in.
- These information pages — about, curriculum, parents, privacy, terms, contact. These carry advertising, and so do involve advertising cookies as described below.
Strictly necessary
| Name / kind | Set by | Purpose | Duration |
|---|---|---|---|
curiouskoko.localProgress.v2 (local storage, not a cookie) | Curious Koko | Your save file: players, nicknames, stars, coins, materials, crafted items, outfit, map position. Stays on the device and is not sent anywhere by itself. | Until you clear site data |
| Firebase Authentication tokens (local storage and cookies) | Google Firebase | Keeps the anonymous or signed-in session alive so your save file can be found again on the next visit. | Session and up to 1 year |
| reCAPTCHA Enterprise / App Check | Confirms that requests to the database come from the real game rather than an automated abuser. | Session, up to 6 months |
These cannot be switched off without breaking the game, and none of them are used for advertising or for tracking you across other websites.
Advertising
Ads on the information pages are served by Google AdSense. Because this site is directed at children, it is tagged for child-directed treatment and ads are served non-personalised: no interest profile is built, and remarketing and interest-based targeting are off.
| Name / kind | Set by | Purpose | Duration |
|---|---|---|---|
__gads, __gpi and similar | Ad delivery: limiting how often the same ad is shown, aggregate reporting to the advertiser, and click-fraud detection. Not used here to build an interest profile. | Up to 13 months | |
| Google ad-serving requests | Loading the ad itself. Involves the standard technical data every web request carries — IP address, browser, page URL. | Not stored by us |
What we do not use
- No analytics cookies — no Google Analytics, no heatmaps, no session recording.
- No social network buttons, pixels or embeds (no Facebook, X, TikTok or Instagram code runs here).
- No third-party trackers beyond the Google services listed above.
- No cross-site advertising profile of the user.
How to refuse or remove them
- Block them in your browser. Every modern browser can block third-party cookies for a site, or all cookies for a site, in its site-settings panel. Blocking third-party cookies stops the advertising ones; the game still works.
- Clear what is already there. Clearing this site's data removes the save file and every cookie set here. Note that this deletes the child's progress if you have not signed in.
- Opt out of personalised advertising generally at Google Ads Settings, aboutads.info/choices, or youronlinechoices.eu.
- Use a content blocker. A browser extension or network-level blocker will stop ad requests entirely. Nothing in the game depends on them.
If you are in the EEA, the UK or Switzerland, you will be asked for a choice about advertising and cookies before non-essential ones are set, and you can change that choice at any time from the link in that prompt.
For the fuller picture of what data exists and why, see the privacy policy.