Storage and privacy

Games in progress, and stats such as your win rate and best time, are stored in this browser on this device. This game data is never sent to a server.

To improve the service and find faults, usage records are sent to the server. They contain the start and completion of an action, a temporary session number, the type and time of the action, an identifier for the page in use, and the type, code and location of any error.

Usage records never contain what you typed, what you copied, search terms, cookies, error messages or stack traces. The collection system also converts the connection address into a hash value that changes daily and uses it to limit the number of transmissions. Connection records (IP addresses) are as described in the “Where you access the service from and how you arrive” section below.

Feedback text and ratings are sent only when you press Send in the form.

Whatever you write in the free-text box of the feedback form is sent as you wrote it, so do not put personal data, passwords, access keys or payment details in it.

The hosting that serves this site (Cloudflare Pages) also produces ordinary access logs (IP address, time, user agent) as part of running it. Those are separate from the usage records described above.

Where you access the service from and how you arrive

To improve the service, we record the country and state/province-level region you access it from at the time of your visit, and which site you came through. To compile statistics on which language versions are used, we record the single display-language setting your browser reports (for example, en-US). We do not record your full list of preferred languages. We record your location only at the country and state/province level, and do not record your city or precise location. When you use the service, connection records, including your IP address, are automatically generated and retained to maintain service security and identify abnormal access. Cloudflare is the data processor for this site. Collection of this item is enabled only after this notice is published; we do not collect it retrospectively for use before collection is enabled.

For referral sources, we record the address of the site you came through immediately before your visit and the page path within that site. We do not record query content appended to the address, such as search terms. Even if you arrive through a search, the search terms you entered are not stored.

These records are kept only for each individual visit, and we do not use identifiers that link one visit to another.

Browser signals

To identify bots, we may collect and use signals your browser reports about its type and version, along with an indication of whether automation tools are being used. These browser signals are estimates and do not conclusively identify your browser's type or version or whether automation tools are being used. Collection of this information is currently disabled and will only be enabled after this notice is published. We do not collect it retrospectively for use before collection is enabled.

Limits of liability

The tools and results on this site are provided as is, and we do not guarantee that they are accurate or complete. Do not use them as the basis for important tax, financial, medical or legal decisions. We accept no responsibility for damage arising from their use. By using the service you agree to this.

Site operator: Dan Kim

Revision date: 2026-09-25