1. What Are Cookies and Browser Storage?
Cookies are small text files placed on your device by websites to remember preferences and assist navigation. Modern websites also leverage HTML5 Web Storage (localStorage and sessionStorage), which allows client-side applications to store minimal settings locally within your browser sandbox without sending them across the network with every HTTP request.
Hydration Calculator primarily relies on HTML5 localStorage rather than intrusive third-party HTTP cookies. This ensures your settings remain strictly on your own hardware.
2. Detailed Cookie & Storage Inventory
Below is an exhaustive inventory of all storage mechanisms utilized by this platform. We classify all items strictly as Essential or Functional:
| Key Name | Technology | Operational Purpose | Retention Period | Category |
|---|---|---|---|---|
cookie_consent | localStorage | Records that you acknowledged and accepted the privacy notice so the banner does not reappear. | Persistent (12 months) | Strictly Necessary |
cookie_consent_date | localStorage | Stores the UTC timestamp of consent acceptance for compliance records. | Persistent (12 months) | Strictly Necessary |
preferred_language | localStorage | Saves your selected UI language (e.g. English, Spanish, French, German, Italian, Portuguese). | Persistent | Functional |
hydration_unit_pref | localStorage | Remembers your preferred measurement system (Metric kg/L vs. Imperial lbs/oz) across sessions. | Persistent | Functional |
sessionStorage | sessionStorage | Volatile scratch memory for active multi-step calculations; automatically cleared upon closing your tab. | Browser Session | Strictly Necessary |
3. Zero Third-Party Advertising & Tracking
Unlike commercial fitness portals, Hydration Calculator does not partner with advertising networks, behavioral retargeters, or social media tracking pixels. We do not load Google AdSense, Meta Pixel, or data broker beacons.
You can use all of our clinical calculation tools with full confidence that your visits are not monetized or aggregated into commercial profiling registries.
4. Managing and Clearing Browser Storage
You retain full control over your browser's cookies and local storage. You can inspect, block, or delete cookies at any time via your browser settings:
Google Chrome
Settings > Privacy and security > Third-party cookies and site data
Apple Safari
Preferences (or Settings on iOS) > Privacy > Block all cookies / Manage Website Data
Mozilla Firefox
Settings > Privacy & Security > Cookies and Site Data
Microsoft Edge
Settings > Cookies and site permissions > Manage and delete cookies and site data
5. Compliance with Global Privacy Frameworks
Our storage architecture adheres strictly to Article 5(3) of the European Union ePrivacy Directive, the General Data Protection Regulation (GDPR), the California Consumer Privacy Act (CCPA/CPRA), and the UK Data Protection Act. Because our cookies and local storage items are strictly necessary for core functionality and user-requested preferences, non-consensual tracking cookies are completely absent.
6. Questions & Data Inquiries
If you have questions regarding our implementation of cookies or data privacy, please review our Privacy Policy or get in touch with our team via our Contact Page. Contact Page | Privacy Policy