Terms of Use

Last updated: 2026-05-03

1. Acceptance of Terms

By accessing and using caffeine-half-life-tracker.hub2.day (the "Site"), you agree to be bound by these Terms of Use. If you do not agree with any part of these terms, please discontinue use of the Site.

2. Informational and Convenience-Only Use

The Caffeine Half-Life Tracker is provided as a free, independent web utility for general informational and entertainment purposes only. It visualizes a theoretical caffeine decay curve based on the inputs you provide and commonly cited half-life ranges. It does not constitute medical advice, sleep therapy, dietary guidance, or professional consultation of any kind. Caffeine metabolism varies significantly between individuals due to genetics, medications, liver function, pregnancy, and other factors that this tool cannot account for.

3. No Professional Advice

Nothing on this Site should be interpreted as a substitute for advice from a qualified healthcare professional, sleep specialist, or registered dietitian. Always seek the guidance of a licensed professional with any questions you may have regarding caffeine consumption, sleep disorders, or your health. Never disregard professional medical advice or delay seeking it because of something you have read or calculated on this Site.

4. Verification of Outputs

The estimated caffeine clearance times and sleep-impact visualizations are mathematical approximations. You are solely responsible for verifying any outputs against your own experience and for making decisions about your caffeine intake and sleep schedule. We make no guarantees about the accuracy, completeness, or timeliness of the results.

5. Lawful Use and Prohibited Misuse

You agree to use the Site only for lawful purposes and in a manner consistent with these Terms. You may not:

• Use the Site in any way that violates applicable local, national, or international law or regulation.
• Attempt to interfere with, disrupt, or overload the Site or its underlying infrastructure.
• Use any automated means (such as bots or scrapers) to access or extract data from the Site in a manner that imposes an unreasonable burden on our systems.
• Misrepresent the outputs of the tool as certified medical or professional advice.

6. Advertising and Third-Party Content

The Site displays advertisements served by Google AdSense and may include links to third-party websites. We do not endorse, control, or assume responsibility for any third-party content, products, services, or privacy practices. Your interactions with advertisers or linked sites are solely between you and the third party. We are not liable for any loss or damage arising from such interactions.

7. Intellectual Property

The Caffeine Half-Life Tracker name, the Site's visual design, the underlying code, and all original content created for the Site are the intellectual property of the Site operator. You may not reproduce, distribute, modify, or create derivative works without prior written permission. You are welcome to use the tool for personal, non-commercial purposes.

8. Availability and Changes

We strive to keep the Site accessible, but we do not guarantee uninterrupted or error-free operation. We reserve the right to modify, suspend, or discontinue any aspect of the Site at any time without prior notice. We may also revise these Terms from time to time; the updated version will be posted with a new effective date. Your continued use after changes are posted constitutes acceptance of the revised Terms.

9. Disclaimers

THE SITE AND ALL TOOLS, CONTENT, AND CALCULATIONS ARE PROVIDED ON AN "AS IS" AND "AS AVAILABLE" BASIS WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED. TO THE FULLEST EXTENT PERMITTED BY LAW, WE DISCLAIM ALL WARRANTIES, INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT, AND ACCURACY OF INFORMATION.

10. Limitation of Liability

To the maximum extent permitted by applicable law, in no event shall the Site operator be liable for any indirect, incidental, special, consequential, or punitive damages, including without limitation loss of sleep, health issues, lost profits, data loss, or personal injury, arising out of or in connection with your use of or reliance on the Site, whether based on warranty, contract, tort, or any other legal theory, even if advised of the possibility of such damages. Our total liability for any claim arising from your use of the Site shall not exceed the amount you have paid us, if any, in the twelve months preceding the claim.

11. Indemnity

You agree to indemnify, defend, and hold harmless the Site operator from and against any claims, liabilities, damages, losses, and expenses (including reasonable legal fees) arising out of your use of the Site, your violation of these Terms, or your infringement of any third-party rights.

12. Disputes and Governing Law

These Terms shall be governed by and construed in accordance with the laws applicable to the jurisdiction where the Site operator is based, without regard to conflict of law principles. Any disputes arising under these Terms shall be resolved through good-faith negotiation. If negotiation fails, disputes shall be submitted to the competent courts in that jurisdiction.

13. Privacy

Your use of the Site is also governed by our Privacy Policy, which explains how we handle information. Please review it to understand our practices.

14. Contact

For questions about these Terms, please contact us at [email protected].