Privacy Policy
Short version: This tool runs entirely in your browser. We do not store any health data you enter. We use Google Analytics to understand site traffic anonymously.
Information We Collect
Health data you enter (Heart Rate, Breathing Rate, Age, Sex): All calculations run locally in your browser using JavaScript. This data is never sent to our servers and is not stored, logged, or transmitted anywhere.
Usage data (via Google Analytics): We use Google Analytics 4 (GA4) to collect anonymous information about how visitors use this site, including pages visited, time on site, device type, and general geographic region (country/city level). This data does not identify you personally.
Cookies
Google Analytics places cookies on your browser to distinguish unique visitors and sessions. These cookies do not contain personally identifiable information. You can opt out of Google Analytics tracking by installing the Google Analytics Opt-out Browser Add-on.
We do not use any other first-party cookies.
Google AdSense
We may display advertisements served by Google AdSense. Google uses cookies and similar technologies to serve ads based on your prior visits to this website and other websites. You can opt out of personalized advertising by visiting Google's Ads Settings.
Third-Party Services
- Google Analytics 4 — anonymous traffic analytics (Google Privacy Policy)
- Google Fonts — fonts loaded from Google servers (Space Grotesk, JetBrains Mono). Google may log requests.
- Google AdSense — advertising (if displayed)
Data Retention
We do not retain any personal health data. Google Analytics data is retained for 14 months by default, per Google's standard settings.
Children's Privacy
This site is intended for general informational use. We do not knowingly collect personal information from children under 13. If you believe a child has provided personal information, please contact us.
Your Rights
Depending on your jurisdiction, you may have the right to access, correct, or delete data held about you. Since we do not store personal health data, most requests relate to Google Analytics data, which you can manage through Google's tools above.
EU/EEA residents have additional rights under the GDPR. Requests can be directed to the contact below.
Medical Disclaimer
NormalHeartRate.org is an informational tool only. It does not constitute medical advice, diagnosis, or treatment. All reference ranges are based on published population data. Always consult a qualified healthcare provider for medical concerns.
Changes to This Policy
We may update this policy occasionally. The "Last updated" date at the top of this page reflects the most recent revision. Continued use of the site after changes constitutes acceptance of the updated policy.
Contact
For privacy-related questions, contact us at: privacy@normalheartrate.org