Terms of Use

Plain terms for a free tool. By using DeadTier you agree to them; if you do not, please do not use the site.

Who runs DeadTier

DeadTier, at deadtier.com, is built and run by an independent developer in Malaysia. It is not affiliated with any device maker, retailer or network operator.

What DeadTier is

A free performance test that runs in your web browser, and a set of written guides about what its numbers mean. There is no account, nothing to install, and nothing to pay.

A result is a measurement, not a guarantee

A result describes how a device performed in your browser, at the moment you ran the test. The same device can score differently on another run: heat, charging, battery saver, other apps and the browser itself all move the numbers. The tier is an estimate until 30 devices of the same type have been tested here, and the results screen says which basis is in force.

Results are offered for information only. They are not professional advice, not a certificate of a device's condition, and not a finding about whether a device is genuine or how a seller described it. A device that scores below what its type normally reaches may be warm, on battery saver, carrying an aged battery, or busy with something else. Do not rely on one result alone when buying or selling a device.

The test puts your device under load

A run keeps every processor core busy and draws a heavy animation for about a minute. The device will warm up and use more battery while it runs. Phones, tablets and computers are designed to protect themselves by slowing down when they get hot, and the test reports that slowdown rather than fighting it. You can press Stop at any time. Do not run the test on a device that is already overheating or damaged.

Only test devices you may use

Run the test on your own devices, or on a device whose owner has agreed - in a shop, ask before testing a demo unit.

Contributed results

When a run finishes, its measurements are added to a public scale that is used to work out the tiers, once per device. They carry nothing that identifies you or your device; the privacy policy lists every field. By running the test you agree that these measurements may be stored and used, combined with other results, to set and publish that scale. To run the test without adding anything, open deadtier.com/?contribute=off.

Acceptable use

• Do not submit results that were not produced by running the test in a browser, including made-up, edited or automated submissions.
• Do not try to overload the site, get around its limits or its browser check, or interfere with how it works.
• Do not use the site for anything unlawful.

Submissions that appear automated or abusive may be refused or removed, because a scale built from invented numbers would mislead everyone who uses it.

The written content

The guides and other text on this site belong to DeadTier. You are welcome to quote a short passage with a link back to the page it came from. Links to other websites are provided for convenience, and DeadTier is not responsible for their content.

Advertising

DeadTier uses Google AdSense, so ads from Google may appear on the site. DeadTier does not choose which ads appear, and ads have no effect on any result. How Google uses cookies for ads, and how to opt out of personalised ads, is set out in the privacy policy.

No warranty

DeadTier is provided as it is and as it is available, without warranties of any kind, including any promise that it is accurate, uninterrupted or suitable for a particular purpose.

Limitation of liability

To the fullest extent the law allows, DeadTier and the person who runs it are not liable for any loss or damage arising from using the site or relying on a result, including any decision to buy, sell or keep a device. Nothing in these terms limits a liability that the law does not allow to be limited.

Changes

These terms may be updated. The date below shows when they last changed, and using the site after a change means accepting the updated terms.

Governing law

These terms are governed by the laws of Malaysia.

Contact

Questions about these terms: deadtiermail@gmail.com.

Last updated 1 November 2026.