Cookie Policy
A cookie policy is only useful if it names the actual cookies. This page lists every cookie and browser-storage key that can be set while you use CompoundCalc, who sets it, what it is for and how long it survives.
What a cookie is, in one paragraph
A cookie is a small text file a website asks your browser to keep and hand back on the next request. Related technologies — local storage, session storage and pixels — do a similar job by different means. This policy covers all of them, because from a privacy point of view the distinction matters less than what the data is used for.
Cookies CompoundCalc sets itself
Exactly one, and it exists only to remember what you told the consent banner.
| Name | Type | Purpose | Duration |
|---|---|---|---|
cc_consent_v1 | Local storage (not a cookie) | Stores whether you accepted or rejected advertising and measurement storage, so the banner is not shown again on every page. | 12 months |
That is the complete list. There is no session cookie, no visitor ID, no A/B test bucket and no cookie holding anything you typed into a calculator — calculator inputs are never persisted anywhere. See the Privacy Policy for why.
Cookies advertising partners can set
CompoundCalc is funded by advertising through Google AdSense. When ads load, Google may set cookies on the google.com, doubleclick.net and googlesyndication.com domains. These are third-party cookies: they are set by Google, not by this site, and only Google can read them.
| Name | Set by | Purpose | Typical duration |
|---|---|---|---|
__gads | Measures ad interactions and limits how often the same ad is shown to you. | Up to 13 months | |
__gpi | Ad personalisation and reporting identifier. | Up to 13 months | |
IDE | Google (doubleclick.net) | Ad selection, delivery and conversion measurement. | Up to 13 months |
test_cookie | Google (doubleclick.net) | Checks whether your browser accepts cookies at all. | 15 minutes |
NID / ANID | Preferences and, where consented, ad personalisation. | Up to 13 months |
Cookie names and lifetimes are set by Google and can change without notice. The authoritative, always-current list is Google's own advertising cookies reference.
What happens before you choose
In the European Economic Area, the United Kingdom and Switzerland, CompoundCalc signals Google Consent Mode v2 with ad_storage, ad_user_data, ad_personalization and analytics_storage all set to denied on first load. Advertising cookies are therefore not written until you accept. Reject and they stay blocked; you will see non-personalised ads, which are chosen from the page you are reading rather than from any profile of you.
Outside those regions the same banner is shown and the same choice is honoured, even though local law may not require it.
Changing your mind
- Use the Cookie settings link in the footer of any page — it reopens the banner with your current choice.
- Turn off personalised ads across all sites at Google Ads Settings.
- Use the industry opt-outs at aboutads.info or youronlinechoices.eu.
- Block or delete cookies in your browser settings. Chrome, Safari, Firefox and Edge all allow blocking third-party cookies entirely.
Blocking every cookie will not break anything here. The calculators are plain JavaScript and do not depend on storage of any kind.
Do Not Track and Global Privacy Control
CompoundCalc sets no tracking cookies of its own, so a DNT header has nothing to switch off on this side. Where a Global Privacy Control signal is present, it is treated as a request to keep advertising storage denied.