Privacy policy
Tool inputs
Calculations run in your browser after the page loads. When you open or share a URL containing dates or times, those URL values are also sent to the hosting service. Do not put confidential information in shared links. We do not require visitor accounts.
Usage measurement
We record page paths without query strings, action types, coarse referral categories, timestamps and random one-use event identifiers. We do not store visitor IDs, raw referrer URLs or IP addresses in the application database. Event records are excluded from reports after 14 days and removed during subsequent collection. Operational reports exclude records before public launch and authenticated operator actions. These counts are events, not a count of people. We honour the browser's Do Not Track signal.
Contact messages and infrastructure
Messages and an optional reply email are stored for operator review. They are excluded from the inbox after 30 days and removed when subsequent messages arrive. The service is hosted through OpenAI Sites on Cloudflare infrastructure; delivery and security systems may process network metadata such as IP addresses. Administrator sign-in is handled by ChatGPT. No third-party analytics script is loaded. Advertising is described below.
Advertising and cookie choices
Advertising is currently disabled. We publish an AdSense ownership verification meta tag and ads.txt; these do not themselves load an advertising script or request ads. Google’s consent message is configured but is not delivered by this site while its ad tag is disabled.
How Google uses data on partner sites · Google ad personalisation settings
Questions and changes
Use the contact form for privacy enquiries or deletion requests. This policy will be updated when our data use changes.
Privacy enquiry