Cookies and local storage
We do not set cookies ourselves. The browser storage below is only used for your own settings.
Last updated 13 Oct 2026
Stored by us, in your browser
| Key | Purpose | Kind |
|---|---|---|
| sa:prefs | Theme, distance units and clock format | Local storage, necessary |
| sa:consent | Your advertising cookie choice | Local storage, necessary |
| sa:alerts | Which alert you subscribed to, so you can unsubscribe | Local storage, necessary |
Advertising cookies
On pages that carry ads, Google AdSense and its partners may set cookies to deliver, measure and personalise ads; third-party vendors, including Google, use them to serve ads based on your prior visits to this and other websites. In the EEA, the UK and Switzerland, Google Consent Mode stays denied until you agree (in Google’s consent message, shown on pages that carry ads; our own cookie bar is not shown there, so you are asked once), so the ad and analytics scripts run without cookies; elsewhere they are on by default and “Only necessary” turns them off. Some pages also show a labelled banner from Adsterra in a separate frame; Adsterra may set its own cookies there.
Opt out of personalised ads from Google in Ads Settings, and from other vendors at aboutads.info or youronlinechoices.eu. Adsterra: privacy policy.
Third-party requests
Map and relief tiles come from OpenFreeMap and AWS; they do not set cookies. More in the privacy notice.