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Cookie policy

Last updated November 15, 2026

Name / typeSet byPurposeDuration
ch2o-theme, ch2o-cookie, ch2o-lead, ch2o-nudge (local storage)CityH2ORemember theme, cookie choice and whether to show the water-check promptUntil cleared
Advertising cookies (e.g. IDE, __gads, __gpi)Google AdSenseServe, measure and (if allowed) personalise ads; limit ad frequency; prevent fraudUp to 13 months
YouTube cookiesGoogle / YouTubeOnly after you press play on a video (privacy-enhanced mode)Varies

Your choices

Choose "Essential only" in our cookie notice to request non-personalised ads. You can also manage ad personalisation in Google Ads Settings, clear cookies in your browser, or use your browser's tracking-protection features. Where the law requires consent (EEA, UK, Switzerland), a Google-certified consent message is shown before advertising cookies are used.

More detail: privacy policy · How Google uses cookies.

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