Cookies and local storage
An itemised list of everything this site puts on your device, what each item is for, and how to get rid of it.
The game itself sets no cookies at all. Everything it remembers goes into a different browser facility called localStorage, which behaves similarly from your point of view but is never sent to a server with your requests. The distinction matters: a cookie travels with every page load, whereas localStorage stays put until the page reads it.
What we store
Every key is prefixed with dominoes.v1. so you can spot ours in devtools.
| Key | Purpose | Lifetime |
|---|---|---|
dominoes.v1.game | Your match in progress, so a refresh or a closed tab does not lose it. | Until the match ends or you clear site data |
dominoes.v1.settings | Variant, opponent difficulty, target score, boneyard house rule. | Until you clear site data |
dominoes.v1.stats | Matches played and won, per variant and per opponent. | Until you clear site data |
dominoes.v1.daily | The date of the last Hand of the Day you solved, and your streaks. | Until you clear site data |
None of these contain personal information, and none of them are readable by us or by anyone else. They are strictly necessary in the sense that the features they support are the features you came for: a game that forgets your match on every refresh is not a working game.
Analytics
Cloudflare Web Analytics measures traffic without cookies. It stores nothing on your device and issues no identifier, so there is nothing here to list or remove.
Google Analytics 4 also runs. In the EEA, the UK and Switzerland it writes no cookie until you agree in the consent dialogue, and measures in cookieless mode until then. Everywhere else it is on by default.
Where analytics storage is allowed, Google sets these on this domain, readable only by Google's script. Google's browser add-on turns them off on every site.
_ga | Google's identifier for distinguishing one browser from another. | 2 years, unless you clear site data |
|---|---|---|
_ga_* | Google's per-property session state. | 2 years, unless you clear site data |
Advertising cookies
This site uses Google AdSense for advertising, and Google may set cookies and similar identifiers to deliver, cap and measure ads. Those are Google's, not ours, and we cannot read them. Typical purposes include remembering that an ad has already been shown to you and detecting invalid traffic.
In the EEA, the UK and Switzerland, advertising storage is denied until you answer a consent dialogue supplied by Google's certified consent management platform, and you can reopen it at any time from the privacy link it provides. Everywhere else, Google may set advertising cookies by default. Wherever you are, you can manage ad personalisation across the whole web at Google My Ad Center.
Refusing advertising cookies does not restrict the game in any way. Ads become non-personalised or stop appearing; every tile, hint and streak works exactly as before.
How to remove everything
Clear site data for this domain in your browser settings, or use the browser's “forget about this site” option. On most browsers you can also open developer tools, find Local Storage under the storage or application panel, and delete the dominoes.v1.* keys individually. Either way the deletion is complete, because there is no copy anywhere else.
Browsing in a private or incognito window works too: storage is discarded when you close it, so nothing persists between sessions. The game handles that gracefully — it simply will not remember your match.
See the privacy page for the wider picture of what is and is not collected.