Privacy

What happens when you run a test

Every test pattern and tone is generated on your device. Your results are never sent anywhere, and the site does not store them. If you close the tab, the test is gone.

The Used Laptop Check keeps your answers and notes in this tab's session storage, so they are still there after you open each test and come back. They never leave your device and are cleared when you close the tab.

Microphone, camera and input tests

The microphone and camera tests ask your browser for permission before they start, and you can revoke that permission at any time in your browser settings. The audio and video stay inside the page: the microphone test only draws a level meter, the recording test keeps its clip in memory until you delete it or close the tab, and the camera tests only show a preview. Audio and video are never recorded to disk, stored or uploaded. Keyboard, mouse, touch and gamepad tests read your input only to draw it on the page; which keys you press and where your pointer moves are never recorded.

Anonymous usage statistics

The site runs its own analytics. There are no third-party analytics or advertising scripts. When you open a page, it records:

• The page, when it was opened, and how long it stayed visible.
• The website that linked to it, as its address only (for example google.com, never the full link or search), or that you arrived directly.
• Your country, which our host works out from your connection at the moment of the request. Your IP address itself is not stored.
• General device information: desktop, mobile or tablet; the browser and operating system family; screen size, viewport width (as a range), pixel ratio and color depth. Whether the screen supports touch is used only to tell tablets from desktops.
• Steps within a tool, such as starting a test, entering fullscreen, allowing the microphone, or finishing a test.
• A test's result as a coarse group only: for example that a screen runs near 144 Hz, a mouse near 1000 Hz or a camera at 1080p, that a microphone's level was weak or clear, or that you marked a dead pixel test as having no faults. Never the measured value itself, and never the result card's text when you copy or share it; only that you copied or shared a result, and whether through your device's share menu or the clipboard.
• A search typed into the tool finder, in lowercase and cut to 60 characters, and whether it found anything. A search that contains an @ or six digits in a row is not recorded at all.
• Which link you followed in the next-step block under a test, or from a guide to a test, as the page it leads to. For a link to another site, only that site's domain, such as support.microsoft.com.
• Whether the test filled the whole window instead of the screen because your browser has no fullscreen mode, with the platform only: iPhone, iPad, Android or other.
• How fast the page loaded (Core Web Vitals), and JavaScript errors from the site's own code: the message, script path, line, column and stack trace, with email addresses, long numbers, long codes and the query part of web addresses removed.

While a page is visible, and until 30 minutes after your last click, key press or scroll, it also tells the server every 30 seconds that it is still open, so the site owner can see how many people are using the site right now. These signals are not stored.

How visitors are counted without cookies

The site sets no cookies for visitors. Each browser tab gets a random ID in its session storage. It is forgotten when you close the tab, and replaced once the tab has sent nothing for 30 minutes. The server keeps this random ID with the statistics it belongs to until they are deleted, so the pages viewed in one tab can be grouped into a visit. A separate flag in local storage holds only the value "1", so a later visit can be counted as returning; it identifies nothing.

To count daily visitors, the server combines your IP address and the browser's User-Agent string with a secret random value that changes every day, and keeps only a short one-way hash of the result. The daily value is deleted after two days, so the hash cannot be turned back into an IP address and cannot recognise you on another day. The site does not use fingerprinting.

What is never collected

Names, email addresses, accounts, IP addresses, precise location, keystrokes, mouse movements, microphone audio, camera images or video, measurements and exact test results, the text of a shared result, and anything typed into a form, apart from tool finder searches as described above.

Your choices

If your browser sends Do Not Track or Global Privacy Control, the statistics script sends nothing at all. Blocking the site's statistics with a content blocker is also fine: every tool works the same without them.

How long data is kept

Usage statistics are deleted automatically after 90 days by default (the site owner can choose between 7 and 180 days). The owner sees totals and breakdowns; a live list of open pages with each tab's country, device type and browser; a feed of recent page views and tool steps; and recent error reports with their page, browser and device. None of these include an IP address, an ID or anything that names you. The statistics are not sold or shared.

Hosting and server logs

The site and its statistics run on Cloudflare's network, and the statistics are stored in a Cloudflare database on the site's own account. Like any web host, Cloudflare may keep short-lived request logs for security and reliability.

The pages carry a security policy that lists what they are allowed to load. If your browser notices something that breaks it, it may send the site a short report: the rule, the blocked address reduced to its site name or a word such as inline, and the page. Reports carry no ID and nothing about you, and are deleted after the same period as the statistics.

Fonts and third parties

The font used on this site is served from the same place as the pages, not from a third-party font service. No third-party scripts run on any page.

Changes

If this policy changes, the new version will be published on this page with an updated date. Questions about privacy go to the address on the contact page.

Last updated: October 6, 2026