Blog
Tests
Guides for testing your keyboard, mouse, screen, sound, network and other hardware, and for fixing what the tests find.
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Tests
Phone orientation data freezes in a browser? How to fix
Learn why a phone's orientation readings stop changing in a browser, how to test them, and which permissions or browser settings to check.
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Tests
Why your browser isn't using the dedicated GPU
Learn why a browser may choose integrated graphics, how to check GPU acceleration, and what to change on Windows or macOS.
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Tests
How to check storage speed after an OS update
Check whether an OS update changed your drive speed, compare large-file and small-write results, and rule out background work or power settings.
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Tests
Why a USB drive reads faster than it writes
A USB drive can read files quickly but write them slowly. Learn what causes the gap, how to measure it fairly, and when the drive may need replacing.
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Tests
How to test storage after replacing a card reader
Check whether a replacement card reader restores normal transfer speed, and separate reader, card, port, and browser limits with a repeatable test.
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Tests
Local file export does nothing? What to check
If clicking Export creates no file or save prompt, check browser download settings, permissions, and file-saving support before blaming the app.
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Tests
VPN switches protocols? What to test
Check whether a VPN protocol switch is normal, compare what changes, and test for IPv6 or WebRTC leaks before you adjust the connection.
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Tests
How to test mouse input after cleaning its sensor
Check whether your mouse tracks smoothly after cleaning its sensor, then separate surface, connection, settings, and hardware problems with simple tests.
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Tests
How to compare Wi-Fi in the same room at different times
Measure Wi-Fi in one spot at different times, keep conditions consistent, and tell whether a change comes from your room, router, or internet.
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Tests
Why color temperature changes when HDR is enabled
Learn why a screen looks warmer or cooler with HDR on, how to compare its white point, and which display settings to check.
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Tests
Why touch input fails with wet fingers
Learn why a touchscreen can miss taps with wet fingers, how to compare wet and dry input, and what to check before blaming the screen.
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Tests
Browser animations lag on one monitor: what to test
Compare browser animations across displays, check graphics performance and screen settings, then isolate whether the cause is the page, browser or monitor.