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
Laptop mic sounds hollow near a wall? How to fix
A laptop microphone can sound hollow near a wall because reflections color your voice. Compare positions and settings to find the cause.
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Tests
How to test a car's rear parcel shelf for vibration
Use a slow bass sweep to find rear parcel shelf rattles, distinguish them from other car noises, and check likely causes safely.
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Tests
How to test your internet on moving day
Use speed, ping, jitter and drop tests to check a new home's internet, separate Wi-Fi trouble from service issues, and choose what to fix first.
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Tests
SSD vs hard drive speed test: what to expect
Learn why SSDs and hard drives produce different large-file and small-write results, how to compare them fairly, and what a browser test can tell you.
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Tests
How to test whether a table is causing speaker resonance
Use a slow bass sweep and compare the speaker on and off the table to find out whether the surface is amplifying vibration, then reduce the rattle.
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Tests
How to check privacy after switching VPN locations
Check for IP leaks after each VPN location change, learn what different addresses mean, and fix settings that could expose your real connection.
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Tests
How to check velocity sensitivity on MIDI keys
Compare soft and hard key presses in a browser MIDI test, read their velocity values, and find out whether your keyboard responds consistently.
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Tests
What phone sensors reveal when the device is stationary
See what a phone's accelerometer, gyroscope, compass, light and location readings should do while still, and how to tell normal variation from a fault.
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Tests
How to test your microphone after a sound driver change
Check whether a sound driver change altered your microphone, input level, format, or recording quality, then isolate the cause before changing settings.
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Tests
Touchscreen fault appears after warming up? How to test
Map where touch input fails as your device warms, compare cold and warm results, and check whether a protector, charger, software, or screen is at fault.
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Tests
How to test a printer for shipping labels
Check print quality, alignment, feed and barcode readability before relying on a printer for shipping labels, with a safe paper test first.
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Tests
Why Wi-Fi stays connected during a router restart
Your device can stay connected to the router's Wi-Fi while internet access stops. Learn what the icon means, how to test an interruption, and what to check next.