Disclaimer

This disclaimer sets out the limits of what the tools on RunTheTests can do. We take honesty about those limits seriously — every tool carries its own "what this cannot tell you" section — and this page collects the general points in one place.

1. For reference and self-diagnosis

The tools are provided to help you understand and check things yourself. They are not a substitute for professional advice — technical, medical, legal or financial. Where a decision carries real cost or risk, treat a tool's result as one input and confirm it independently.

2. A browser cannot read your hardware

This is the most important limit, and we state it on every tool it applies to. A web page cannot read your drive's SMART data, your installed RAM, your CPU temperature, your fan speed, your true battery health, or how much ink is in your printer. Tools that touch these work from figures you supply from your own system, or diagnose visually from what you print or see. Any site claiming a browser can read these directly is overstating what is possible.

3. Approximations are labelled, not hidden

Some measurements are approximations of a real-world quantity — a timed request is not an ICMP ping, a two-resolver check is not a global propagation check, an estimated pixel width is not a rendered one. Where a figure is an estimate, the tool says so. Do not treat an estimate as an exact measurement.

4. No health, medical or safety claims

Tools that produce tones, flashing patterns or sound levels are for reference and entertainment only. They are not hearing tests, calibrated sound meters or medical devices, and nothing here should be used to make a health or safety decision.

5. Reference data can drift

Lookups of codes, ports, error messages and specifications reflect our best information at the time of writing. Vendors revise these, so for anything critical, verify against the vendor's own current documentation.

6. Accuracy is not guaranteed

We test the calculations behind these tools and aim to get them right. Even so, we do not guarantee that any result is free of error. If you spot one, please tell us — we would rather fix it than have anyone rely on a wrong answer.

7. Repair-or-replace decisions are yours

Where a tool suggests hardware may be failing, that is a prompt to investigate, not a verdict. A diagnostic narrows the field; it does not name the broken part with certainty. Any decision to repair or replace, and its cost, is yours.

8. External links

Some pages link to third-party sites and products, including affiliate links. We are not responsible for their content, accuracy or availability, and a link is not an endorsement beyond the context in which it appears.

Contact

To report an inaccuracy or ask about a tool's limits:contact@brightscalelabs.com.