Cookie and storage policy
ONON.PRO uses browser storage and, after consent, analytics and conversion-attribution cookies. This page lists their purposes and how to change your choice.
Necessary browser storage
onon-privacy-consent-v1 stores your analytics choice for up to 180 days. ononono-theme stores the selected theme; onon-locale and onon-measurement-system store your language and unit preferences. Short-lived session storage supports interface state and security. These items are not used for advertising.
Analytics and conversion storage
The self-hosted Umami tracker does not set cookies or use cross-site identifiers. After consent, Google Analytics may set _ga identifiers and Google Ads may set _gcl identifiers used for conversion attribution, subject to the corresponding Google property settings. A random ONON.PRO session identifier is kept only in the current browser tab and sent for internal search analytics; the server stores only its keyed one-way hash.
How to control storage
Use “Privacy settings” in the footer to accept or reject analytics and conversion measurement at any time. Rejecting measurement does not disable calculators or search. You can also delete site data in your browser; the site will then ask for your choice again.
Google Analytics
Self-hosted Umami measures anonymous visits and product actions, Google Analytics measures page usage, Google Ads attributes successful calculations to campaigns, and ONON.PRO records internal search-demand events. Advertising storage may be used for conversion attribution; ad personalisation remains disabled.
Google Privacy Policy ↗