Reaction Speed Test
Reaction Speed Test
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Terms of Use

Last updated: November 13, 2026

These Terms of Use ("Terms") apply to your use of reactionspeedtest.org (the "Site"), operated by Ellis Claire ("we", "us"). By using the Site, you agree to these Terms. If you do not agree, please do not use the Site.

These Terms are provided in English only. If we offer a translation, the English version prevails.

1. What the Site provides

Reaction Speed Test provides free reaction time tests that run in your browser (a simple visual test, F1 start lights, a sound test, a choice test and an FPS-style test), a ruler drop calculator and guides about reaction time. The basic service is free to use.

2. Using the Site

You agree not to:

  • use the Site for anything unlawful or to infringe anyone's rights;
  • try to disrupt, overload, or gain unauthorized access to the Site or its systems;
  • scrape or copy the Site in bulk, or resell it, without our written permission.

3. Accuracy and no professional advice

We work to keep results accurate, but the Site is provided for general information and convenience. Results may contain errors and depend on your device, browser, and input. Reaction times measured in a browser include delay from your screen, mouse, keyboard, touchscreen or speakers, so they are not lab measurements and are not a medical, driving or fitness assessment. Do not rely on the Site as professional (for example medical, legal, safety, or financial) advice.

4. Intellectual property

The Site's design, text, graphics, and code belong to us or our licensors. You may use the Site for your own personal or business purposes, but you may not copy or redistribute its content except as allowed by law. Results you create with the Site are yours to use.

The Site may link to or use third-party websites and services. We do not control them and are not responsible for their content or practices.

6. Disclaimer

The Site is provided "as is" and "as available", without warranties of any kind, to the extent permitted by law. We do not guarantee that the Site will always be available, error-free, or secure.

7. Limitation of liability

To the extent permitted by law, we are not liable for indirect, incidental, or consequential damages, or for lost profits or data, arising from your use of the Site. Nothing in these Terms limits liability that cannot be limited by law, including for intent or gross negligence, or your statutory rights as a consumer.

8. Changes

We may update the Site and these Terms. If we make important changes, we will update the "Last updated" date. Continuing to use the Site after a change means you accept the updated Terms.

9. Governing law

These Terms are governed by the laws of the State of California, United States, without regard to conflict-of-law rules. If you are a consumer, you also keep the protection of the mandatory laws of the country where you live.

10. Contact

Ellis Claire, 942 Brilliance Ln, Costa Mesa, CA 92626, USA Email: hello@reactionspeedtest.org