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
How to compare device capabilities for a web app
Compare two computers or phones using the details a web app can actually access, then separate hardware limits from browser, permission, and network issues.
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Tests
How to compare kitchen appliance noise
Compare a blender, range hood, or dishwasher fairly by measuring at the same distance, in the same room, with a browser-based noise meter.
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Tests
Why speaker stands amplify bass vibrations
Find out why speaker stands can make bass rattles more noticeable, test the problem with a slow tone sweep, and reduce vibration with simple changes.
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Tests
How to inspect a screen after changing refresh rate
Check whether a new refresh rate applied, spot flicker or artifacts, and restore a stable setting on Windows 11 or macOS.
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Tests
Why a monitor's pixel policy matters for a return
Check whether a dead or stuck pixel qualifies for a return, document it before trying a fix, and find the right policy deadline.
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Tests
Frame-rate problem or network lag? How to tell
Learn whether choppy video comes from your camera or a shaky connection, then check frame rate, network stability, and the settings most likely to help.
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Tests
How to spot a dirty webcam lens in a live preview
Use a live camera preview to tell whether haze, glare, or blur comes from a dirty webcam lens, then clean it safely and check again.
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Tests
How to compare two SD cards for photo transfers
Compare SD card read and write speeds fairly, then use the results to estimate which card will move photo files faster in your setup.
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Tests
How to test MIDI controller transport controls
Check whether your MIDI controller's play, stop, and record buttons send messages, then find out what to check if they do not.
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Tests
How to check speeds over a USB phone tether
Check download, upload, ping and jitter over a USB phone tether, then compare results to find whether the limit is cellular, cable or computer.
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Tests
Which browser tests help a freelance IT technician?
Use browser-based hardware checks to triage client complaints, verify repairs, and collect useful evidence without installing diagnostic software.
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Tests
Low memory copy score: what it means
Learn what a low RAM copy score means, how it differs from read and write results, and how to rerun the test fairly before troubleshooting.