Privacy Policy

Last updated: May 15, 2026

1. Our Commitment to Your Privacy

At TezHes, your privacy is our priority. All calculators on this website work entirely in your browser. The numbers you enter — whether for BMI, mortgage, calories, or any other calculation — never leave your device. We do not collect, store, or transmit any personal data you input into our tools.

2. Information We Collect

Because all calculations happen locally, we collect no personal information through our calculators. However, like most websites, we automatically receive certain technical information to ensure proper operation:

  • IP address (anonymized for analytics)
  • Browser type and version
  • Device type and operating system
  • Pages visited and time spent on the site
  • Referring website (if you came from a search engine or link)

3. Cookies and Local Storage

We use cookies and local storage to improve your experience:

  • Language preference — so the site remembers your selected language on future visits
  • Theme preference — remembers whether you prefer light or dark mode
  • Google AdSense cookies — for showing relevant advertisements (see Section 4)

You can disable cookies in your browser settings at any time. However, some features of the site may not function properly without them.

4. Google AdSense & Third-Party Advertising

We use Google AdSense to display advertisements on TezHes. Google AdSense uses cookies to serve ads based on your prior visits to our website and other websites. You can learn more about how Google uses advertising cookies here:

https://policies.google.com/technologies/ads

How to opt out of personalized advertising:

Google AdSense is a requirement for monetization. By using TezHes, you consent to the use of advertising cookies as described in this policy.

5. Third-Party Services

We use the following third-party services that may collect anonymized data:

  • Google Tag Manager — manages our analytics and advertising scripts
  • Google AdSense — serves advertisements (see Section 4)
  • Google Fonts — loads fonts for visual design (no personal data collected)

These services comply with GDPR and CCPA regulations. No personal identifiable information is shared.

6. Data Security

We take security seriously. All data transmission between your browser and our servers uses HTTPS encryption. Your calculations never leave your browser, so there is no risk of interception or storage of your sensitive inputs.

7. Children's Privacy

TezHes does not knowingly collect any personal information from children under 13 years of age. All our calculators are safe for educational use and require no registration or personal data entry beyond the numbers needed for calculations.

8. Your Rights (GDPR & CCPA)

If you are located in the European Economic Area (EEA) or California, you have the following rights:

  • Right to access — request information about what data we hold (answer: almost none)
  • Right to deletion — since we don't store personal data, nothing to delete
  • Right to opt out of sale — we do not sell your data
  • Right to object to processing — you can disable cookies in your browser

To exercise these rights, contact us at: [email protected]

9. Changes to This Privacy Policy

We may update this Privacy Policy from time to time. Any changes will be posted on this page with an updated "Last updated" date. We encourage you to review this policy periodically.

10. Contact Us

If you have any questions about this Privacy Policy or how we handle your data, please contact us: