Cookies
Cookies and local storage
The game runs on very few cookies. This page lists all of them, including those set by our providers, and explains how to take back control.
Last updated :
The principle
Only two categories exist on this site. Strictly necessary storage, set because the site cannot work without it, and advertising storage, set only with your agreement.
No advertising cookie is set before you consent. Refusing takes nothing away from the game: the seven rounds, the modes and your statistics work exactly the same.
The game's audience measurement falls into neither category: it sets no cookie at all. What is listed below is therefore the complete list of what actually lands on your device.
Strictly necessary
The two Stripe cookies are set by the payment library, which loads with the game. They are set on the krillion.to domain, serve only payment fraud detection, are never used for advertising and cannot follow you to other sites.
| Name | Set by | Duration and role |
|---|---|---|
| echolow_locale | KRILLION, on krillion.to | One year. Remembers the chosen language so the page arrives in the right one |
| sb-… (session) | Supabase, on behalf of KRILLION | Length of the session. Keeps you signed in to your account |
| __stripe_mid | Stripe, on krillion.to | One year. Payment fraud detection |
| __stripe_sid | Stripe, on krillion.to | Thirty minutes. Payment fraud detection |
Local storage, which is not a cookie
Your games, statistics, sound setting and language are written to your browser's local storage. That is not a cookie: none of it is sent with your requests and no third party can read it.
These entries exist because without them the game cannot show your history or your current streak. Each key is listed in the privacy policy.
Audience measurement adds no cookie
The game records a few events to see where players get stuck. That measurement is ours, it stays on krillion.to and it loads no outside tool. It sets no cookie, neither ours nor a third party's.
It uses a single thing on the browser side: a random tab identifier kept in session storage. It is not a cookie, it travels with none of your requests, nobody else can read it, and it disappears the moment you close the tab. To tell two signed-out visitors apart, the server reuses the one-way IP fingerprint that already powers the game counter, and which it computes itself.
Because nothing is stored and nobody is followed from site to site, this measurement does not ask for your agreement. The fields recorded, the legal basis and the 90-day retention limit are set out in the privacy policy.
Advertising storage
No advertising cookie is currently set, because no ads are served yet.
When advertising is switched on it will be supplied by Google AdSense. Google and its partners will then set cookies to choose ads, measure how often they are shown and stop the same ad repeating, and only after you consent.
Google, as a third-party vendor, uses cookies to serve ads on this site. Those cookies enable Google and its partners to serve ads based on your visit to this site and other sites on the internet.
Giving, refusing and withdrawing consent
In the European Economic Area, the United Kingdom and Switzerland, a consent window is shown before any advertising storage. It is provided by a Google-certified consent management platform integrated with the industry's transparency and consent framework.
You choose to accept or refuse there, and you can open the detail of purposes and partners. Refusing is as easy as accepting.
To change your mind later, reopen that window through the cookie settings link shown with the ads. Withdrawal applies from then on and does not undo what happened before.
Other ways to refuse
- Google Ads Settings: turn off personalisation across Google services.
- www.aboutads.info/choices: opt out of many advertising vendors at once.
- www.youronlinechoices.com: the European equivalent of the same mechanism.
- Your browser: block or clear cookies, entirely or site by site. Clearing krillion.to cookies signs you out and resets the consent window.
- Clearing the site's data also erases the games stored locally, unless you exported them from the Backup page first.
- Closing the tab is enough to erase the audience measurement tab identifier. There is nothing else to clean up on that side.