Privacy
Your privacy is straightforward with FastWindowTimer: your fasting data stays on your device. There are no accounts, no server-side fasting history, and no email list.
What data we collect
Timer state, fasting history and protocol choices stay in this browser on your device. The timer and calculator do not require an account, payment or email address. If you choose to submit the contact form, the contact data described below is transmitted to the contact service.
Local storage
FastWindowTimer uses your browser's local storage to persist your timer state and fasting history between sessions. This data never leaves your device. You can clear it at any time by clearing your browser's site data for FastWindowTimer.com.
Analytics
Google Analytics loads in restricted Consent Mode before you choose and after you decline; it may send cookieless technical signals. Allowing analytics enables analytics storage. Google may process pages visited, device, browser, language and approximate location. Our tag does not add fasting-history or protocol-choice events. Advertising signals and Google Signals stay disabled. Use the buttons below to change your choice. If browser storage is blocked, your choice applies in this tab but cannot persist after a reload.
Technical data
Analytics, metrics, and security logs may include device type, browser, language, approximate location, pages visited, interaction events, performance information, and technical logs. This helps us understand behavior without creating user accounts.
How we use this data
Technical data is used for analytics, security, improving the site experience, performance, service quality, and operational stability. We do not sell fasting history or use it for personal health profiling.
Advertising and affiliates
FastWindowTimer has no advertising or affiliate links at this time. If ads or affiliate links are added in future, we will update this policy, disclose the arrangement clearly, and — where required by law — implement a compliant consent flow before any ad loads.
Contact
Submitting the Contact form sends your name (if provided), email address, message, page address and anti-spam token to our contact service hosted on Cloudflare. Cloudflare Turnstile provides spam protection. Please do not include fasting history or other sensitive health information.