Privacy policy
Last updated: August 2026
DeviceCheck is a set of browser tools that test hardware. The short version of this policy is that the tests run on your own device and the things they capture never leave it.
What the tests do with your data
The microphone, webcam, keyboard, speaker, display, and refresh rate tests all run entirely in your browser using standard web APIs. Audio, video, photos, and keystrokes are held in your browser's memory for as long as the test is open and are discarded when you delete them or close the tab.
- Nothing you record is uploaded to us or to anyone else.
- There is no server that stores recordings, because there is no server involved in the tests at all.
- Downloads are generated locally by your browser and saved directly to your device.
- Camera and microphone access is requested by your browser, granted by you, and released when you stop the test.
Cookies
We set no cookies of our own and use no browser storage for the tools. Advertising on this site does use cookies, which is covered below.
Advertising
This site is funded by advertising served through Google AdSense. That is the one third-party service loaded on these pages, and it is what pays for the tools to stay free.
- Google and its partners use cookies to serve ads based on your previous visits to this and other websites.
- Google's use of advertising cookies enables it and its partners to serve ads based on your visit to this site or other sites on the internet.
- You can opt out of personalised advertising at Google Ads Settings.
- You can opt out of third-party vendor cookies for personalised advertising at aboutads.info.
If you are in the European Economic Area, the United Kingdom, or Switzerland, you will be asked for consent before personalised ads are shown, and you can change or withdraw that choice at any time.
Advertising is separate from the tools. Nothing an advertiser receives includes anything you record, type, or capture during a test, because that content never leaves your browser in the first place.
Analytics
Our host, Cloudflare, records standard server request logs and aggregate traffic counts as part of delivering the site. These are anonymous aggregate figures such as page views and country, and are not used to identify individuals.
Third parties
Google AdSense, described above, is the only third-party service on this site. There are no other trackers, no analytics scripts, and no third-party fonts. If that changes, this page will be updated before the change goes live, naming what was added and what it collects.
Children
These tools are general purpose utilities and are not directed at children. We do not knowingly collect information from anyone, of any age, because we do not collect information.
Your rights
Data protection laws such as the GDPR and CCPA give you rights to access, correct, and delete personal data held about you. We hold no personal data ourselves, so there is nothing for us to return or erase. For data held by Google through advertising, use the opt-out links above or Google's own privacy controls.
Contact
Questions about this policy can be sent to the address on our contact page.