How this default website handles calculator inputs, bookmarks, and ordinary web requests.
Published September 15, 2026
Calculator inputs stay in your browser
The supplied calculators run locally in JavaScript. The site does not upload or persist calculator input values or results. Changing pages or closing a tab may clear those values. Copying, printing, or exporting a result is an action you choose; the resulting file or clipboard content is then under your control.
Bookmarks on your device
The bookmark feature stores only calculator identifiers in your browser's local storage under the key cc-bookmarks. It does not store your calculations. Remove individual bookmarks using the bookmark buttons, or remove all saved data by clearing this site's browser storage.
Hosting and network requests
Your browser requests website files from the hosting service. The hosting provider, network, or security service may process standard request information such as an IP address, browser information, requested URL, and access time. That is separate from calculator input processing. Retention and handling of hosting logs depend on the operator's provider and settings.
External links
Reference links lead to independent websites. Their privacy practices apply after you follow those links. No calculator inputs are added to the reference URLs.
Questions
Contact details, when configured by the site operator, are shown on the About page. Do not send sensitive financial details or personal identifiers in a public message or ordinary email.
Website administration
The owner-only admin panel uses an essential session cookie for sign-in and form security. It stores a password hash, calculator content, an activity log, and short-lived hashed login-rate-limit identifiers on the hosting server. Public visitors do not need an account. This admin cookie is limited to the /admin/ path. New uploaded calculators should be reviewed for their actual data behavior before publication.
Optional Google Analytics
The site owner can enable Google Analytics 4 to understand page visits and, optionally, calculator use. When enabled, its tag is blocked until you choose Accept analytics. Rejecting analytics does not restrict any calculator. Analytics is not installed in the owner admin panel or draft previews.
With consent, Google can receive page paths and titles, approximate device and browser information, cookie identifiers and normal network information. The integration sends no calculator input values, results, search-box text or user identifiers. Its page URLs omit query strings and fragments, and referrers are reduced to their origin. This limits campaign attribution. The operator must keep Google Enhanced measurement and user-provided data collection off for these safeguards to apply to all installed tracking.
Your choice is saved in this browser for up to 180 days in local storage under cc-analytics-consent-v1. With permission, Analytics uses first-party cookies prefixed cc_ga. Use to change your choice. Withdrawing permission disables this integration, clears its accessible analytics cookies and reloads the page. This does not delete information already received by Google.
The owner may set an essential CCAnalyticsExclude preference cookie to exclude their own browser for up to one year. Analytics account retention settings and any other scripts added by the operator must be reviewed separately. Read Google's privacy policy. This notice must be adapted to the operator's real business and legal obligations before launch.
