Privacy Policy

At ZwiftCalculator.com, your privacy matters. This Privacy Policy explains what data we collect, how we use it, and the choices you have. By using our website, you agree to the practices described here.

1) Information We Collect

Personal Information (you provide): If you contact us or subscribe (e.g., name, email address).

Usage/Technical Data (automatic): IP address, browser type, device info, pages visited, and similar analytics data collected via cookies and similar technologies.

2) How We Use Information

We use information to:

• Operate, maintain, and improve the site and user experience.
• Analyze traffic and performance.
• Personalize content and ads.
• Communicate with you and respond to inquiries.

3) Cookies & Similar Technologies

We use cookies, local storage, and similar tech to:

• Remember preferences.
• Measure site performance.
• Serve personalized and non-personalized ads via third-party partners.

You can manage cookies in your browser settings. Disabling cookies may affect site functionality.

4) Advertising & Third-Party Partners

We partner with third-party advertising partners to display ads. These partners may use cookies, web beacons, device identifiers, and similar technologies to deliver and measure ads and to personalize content. Some partners may receive limited data to provide analytics, ad measurement, fraud prevention, and similar services.

Google and the DoubleClick cookie

• Third-party vendors, including Google, use cookies to serve ads based on your prior visits to this website or other websites.
• Google's use of advertising cookies enables it and its partners to serve ads to you based on your visit to this site and/or other sites on the internet.
• You may opt out of personalized advertising by visiting Google Ads Settings.
• You can opt out of a third-party vendor's use of cookies for personalized advertising at aboutads.info or, in Europe, Your Online Choices.
• More detail on how Google uses data from sites that use its services is published at policies.google.com/technologies/partner-sites.

Other third-party scripts

Pages on this site also load a small script from cdn.gpteng.co, which belongs to the platform the site was originally built with. It is a development and editing tool rather than an advertising or tracking product, but it is a third-party request, so it is listed here for completeness.

Analytics

This site uses Google Analytics to understand which pages people read and how the site performs. Analytics cookies collect information such as pages visited, approximate location, device type and referring source. You can prevent Google Analytics from collecting data with the Google Analytics opt-out browser add-on.

4a) What the calculators do with your numbers

Nothing. Every calculator on this site runs entirely in your browser using JavaScript. The weight, power, height and test figures you type are never transmitted to our servers, never stored, never logged and never attached to an identity. There are no user accounts on this site, so there is nothing to attach them to. Close the tab and the numbers are gone.

5) Your Privacy Rights (GDPR/EEA)

If you are in the European Economic Area, you have rights to:

• Access, correct, or delete personal data we hold about you.
• Object to or restrict certain processing.
• Data portability where applicable.
• Withdraw consent at any time (this won't affect prior lawful processing).
• Lodge a complaint with your local Data Protection Authority.

To exercise these rights, contact us at zwiftcalculator@gmail.com. Where a consent message is shown to you before ads load, your choice there can be changed at any time from the same message. If you do not see one, use the opt-out links in section 4, which work regardless.

6) Your Privacy Rights (CCPA/CPRA - California)

California residents may:

• Request disclosure of categories and specific pieces of personal information collected, used, or disclosed.
• Request deletion of personal information (subject to exceptions).
• Opt out of "sale"/"sharing" of personal information for cross-context behavioral advertising.

Submit requests to zwiftcalculator@gmail.com. We will not discriminate against you for exercising your rights.

7) Legal Bases for Processing (EEA Users)

We rely on one or more of the following:

• Consent, where a consent message is presented before advertising and analytics cookies are set.
• Legitimate interests (e.g., site security, basic analytics).
• Performance of a contract (providing requested services).
• Compliance with legal obligations.

8) Data Retention

We keep personal data only as long as necessary for the purposes described in this policy, to comply with legal obligations, resolve disputes, and enforce agreements.

9) Data Security

We use reasonable administrative, technical, and physical safeguards to protect personal information. No method of transmission or storage is 100% secure.

10) Children's Privacy

Our site is not intended for children under 13 (or under 16 in certain jurisdictions). We do not knowingly collect personal information from children. If you believe a child has provided us personal information, contact us and we will delete it.

11) International Transfers

Your information may be processed in countries outside your own, which may have different data protection laws. Where required, we implement safeguards (such as standard contractual clauses).

12) Links to Other Sites

We may link to external sites we don't operate. We're not responsible for their content or privacy practices. Review their privacy policies.

13) Changes to This Policy

We may update this Privacy Policy from time to time. The "Effective Date" at the top reflects the latest version. Continued use of the site means you accept the updated policy.

14) Contact Us

If you have questions or requests regarding this Privacy Policy or your data, contact us:

Email: zwiftcalculator@gmail.com

Website: ZwiftCalculator.com