What Cookies Are
Cookies are small text files that a website asks your browser to store. They allow a site (or a third-party service it embeds) to remember information between page views or visits — for example, that you have already loaded a page, or that an ad has already been shown to you.
This page is not a substitute for the full Privacy Policy; it focuses specifically on cookies and similar storage technologies (such as local storage and pixel tags).
Categories of Cookies Used
1. Strictly necessary
Used for the basic operation of the site. We do not currently set any first-party cookies in this category. The simulator's flip statistics are stored in your browser's local storage, which is not a cookie and is never sent to any server.
2. Analytics
Set by Google Analytics (GA4) to measure aggregate usage — pages viewed, sessions, approximate location, device type. These help us understand which parts of the site are useful and which are not.
3. Advertising
Set by Google AdSense and Google's advertising partners to display ads, limit how often the same ad is shown, and — where you have not opted out — to personalise ads based on your interests inferred from prior browsing.
Specific Cookies and Identifiers
| Name | Set by | Purpose | Typical lifetime |
|---|---|---|---|
| _ga | Google Analytics | Distinguishes unique users. | Up to 2 years |
| _ga_<ID> | Google Analytics | Persists session state for a specific GA4 property. | Up to 2 years |
| _gid | Google Analytics | Distinguishes users (short-lived). | 24 hours |
| NID, IDE, ANID, DSID, FLC, AID, TAID | Google / DoubleClick | Ad serving, frequency capping, ad personalisation. | Days to ~13 months, depending on cookie |
| __gads, __gpi | Google AdSense | Ad selection and reporting on this site. | Up to 13 months |
| coinStats, soundEnabled | Coin Toss Simulator (local storage, not a cookie) | Stores your running flip totals and your sound preference, in your browser only. | Until you clear browser data |
Google may add or rename cookies over time. The authoritative list is Google's own documentation, linked below.
How to Control Cookies
You can control cookies and similar technologies in several ways:
- Browser settings. Every major browser lets you block all cookies, block third-party cookies only, or delete existing cookies. Search your browser's help pages for "manage cookies".
- Google Ad Settings. Turn off personalised ads for your Google account at google.com/settings/ads.
- Industry opt-outs. Use the Digital Advertising Alliance's tool at aboutads.info/choices or, in the EU, youronlinechoices.eu.
- Google Analytics opt-out. Install Google's Google Analytics opt-out browser add-on.
- Local storage. Click the "Reset" button on the home page to clear your saved flip stats, or clear site data in your browser settings.
Blocking advertising cookies will not stop ads from being shown — they will simply be less personalised.
Further Reading
- Types of cookies used by Google
- Google Advertising Policies
- How Google uses information from sites that use its services
Changes to This Policy
If the set of cookies used by the site changes materially, we will update this page and the "Last reviewed" date at the top.
Contact
Questions about cookies or your privacy choices: [email protected].