Privacy Policy

1. Information We Do NOT Collect

Because our computational architecture is entirely static and runs on client-side JavaScript, we deliberately do not collect:

• Any physical dimensions, tank capacities, or geometric inputs you enter into calculators.
• Calculated volumes, weights, conversion matrices, or project outputs.
• Account credentials or passwords (our platform is free and requires no account creation).
• Financial or payment information.

2. Automatically Collected Technical Logs

When you visit our website, our web server and content delivery network (CDN) may automatically record standard technical log entries required for site security, DDoS prevention, and basic performance monitoring. These logs may contain:

• Internet Protocol (IP) address (anonymized/truncated where feasible)
• Browser type and version
• Operating system and device category
• Referring URL, requested static asset, and request timestamp

These logs are strictly operational, kept for a limited retention period, and never cross-referenced or matched with individual user profiles.

3. Local Storage and Cookies

We do not use tracking cookies, advertising beacons, or surveillance pixels. Any browser storage we utilize (such as localStorage) is used exclusively to remember harmless on-page user preferences—such as your selected default measurement unit (metric vs imperial) or UI toggle states. These preferences remain entirely on your local device.

4. Information You Submit Voluntarily

If you choose to submit our Contact Us or email us directly, we receive the details you provide (such as your name, email address, inquiry topic, and message). We use this information solely to respond to your inquiry, debug reported calculation issues, or evaluate suggested features. We never sell or share contact details with advertisers.

5. GDPR & European Privacy Rights

Under the EU General Data Protection Regulation (GDPR) and UK GDPR, users possess specific statutory rights regarding their personal data, including the right to access, rectify, or request deletion of any communications sent to us. Because we do not store calculation data or maintain user profiles, there is no personal profile or history maintained on our servers.

6. California Consumer Privacy Act (CCPA)

We do not sell, rent, or lease personal information to third parties. We do not engage in behavioral cross-context advertising. California residents hold the right to know what personal information is collected (as detailed in this policy) and request its removal without fear of discrimination.

7. External Links & Third-Party CDNs

Our site may load web typography from Google Fonts or static assets through global content delivery networks. These services adhere to industry security standards. Our site may also provide external references to standards bodies (e.g. NIST, ISO); we are not responsible for the privacy practices of external third-party domains.

8. Changes to This Policy

We may occasionally update this Privacy Policy to reflect platform improvements or statutory adjustments. Any changes will be posted to this URL with an updated "Last Updated" date at the top of the page.