1. What a cookie is
A cookie is a small file a website stores in your browser. Similar technologies include local storage and device identifiers. We refer to all of them as cookies.
2. Cookies we set
Preferences: your chosen theme (light or dark) and interface language may be stored in your browser's local storage. They never leave your device.
so67 sets no login, tracking or advertising cookie of its own.
3. Third-party cookies
Google Analytics (_ga, _ga_*): distinguishes visitors and sessions to produce audience statistics. Lifetime up to 2 years.
Google AdSense and Google advertising (for example __gads, __gpi, IDE, NID, DSID): serve ads, cap how often you see them, prevent fraud and, where allowed, personalize them. Lifetimes range from a session to about 13 months.
The exact list is controlled by Google and changes over time. See policies.google.com/technologies/cookies.
4. How to control them
Where a consent banner is shown, you can accept or refuse non-essential cookies and change your choice later.
You can also block or delete cookies in your browser settings, turn off personalized ads at adssettings.google.com, and use the Google Analytics opt-out add-on. Blocking cookies does not stop the calculators from working; you may still see non-personalized ads.
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