Information you enter
The main tool can save two custom labels in your browser's local storage underflipthecoin:custom-labels. The labels are not placed in a shared URL, uploaded to a database, or attached to analytics events. Restore Heads/Tails removes that local value. Other tool history and statistics live only in page memory and disappear when the page session ends.
Product measurement
The site code can emit privacy-limited events for actions such as a first or repeat flip, keyboard use, custom-label activation, reset, batch size, series completion, dice side count, experiment size, and CSV export. Event payloads deliberately exclude label text, questions, and selected outcomes. If Cloudflare Zaraz is configured for this site, it can receive those same limited events.
Error monitoring
The site loads a third-party error-monitoring script (Sentry) so that broken releases can be found and fixed. It reports technical defect data such as the error message and stack trace, the page URL, the browser and operating system, and the request IP address that the monitoring provider observes. It is not used for advertising, cross-site profiling, or session recording, and it is not given custom labels, questions, decision outcomes, or experiment data.
Delivery and operational data
The site is delivered through Cloudflare. Like most hosting and security providers, Cloudflare may process request information such as IP address, user agent, requested URL, timestamps, network and security signals, and approximate location to deliver, protect, and measure the service. Retention and processing for those systems are governed by the site's Cloudflare configuration and Cloudflare's terms.
CSV exports
Probability experiment CSV files are assembled and downloaded in your browser. They contain trial numbers, coin outcomes, cumulative statistics, and the random method identifier/version. The site does not upload the file.
Cookies, accounts, and advertising
The product does not require an account, does not provide cloud history, and does not set an application cookie for its decision tools. No advertising or cross-site profiling code is intentionally included in this release. A hosting or security provider may still use essential mechanisms needed to protect and operate the service.
Your controls
- Use Restore Heads/Tails to remove saved custom labels.
- Clear site data in your browser to remove all local storage for this origin.
- Do not enter sensitive information as a custom label.
- Use browser privacy controls to limit optional measurement.
Questions and corrections
Flip a Coin is built and maintained by Wayde Lyle. Send a privacy-copy correction through the maintainer's public profile without including personal or sensitive information.