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
Computer fan surges every few seconds: what to check
Find out whether repeated fan bursts come from normal workload changes, blocked airflow, or a cooling problem, then test safely and choose the next check.
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Tests
Display scaling changes reported screen dimensions
Learn why changing display scaling can alter screen dimensions reported by a browser, and how to compare the reported size with your display settings.
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Tests
Why a VPN test cannot prove complete online anonymity
A VPN leak test checks a few exposed network details, not anonymity. Learn what its result proves, what it misses, and what to check next.
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Tests
How to find your browser's reported platform information
See what operating system and platform your browser reports, how to check it with Browser Info, and why the result may not match your device.
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Tests
Why file saving works in one browser but not another
Find out why a file saves in one browser but not another, compare browser settings and site permissions, and fix common download or export problems.
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Tests
Why browser memory test scores keep changing
Learn why browser memory test scores change between runs, what read, write, copy and response-time results mean, and how to compare them fairly.
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Tests
Why a fast microSD card crawls in a cheap reader
A fast microSD card can be limited by its reader, port, or adapter. Test read and write speed, then find the bottleneck without risking your files.
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Tests
Why wireless roaming causes short interruptions
Learn why Wi-Fi drops for a few seconds as you move between access points, how to test for roaming interruptions, and what settings may help.
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Tests
What a WebRTC candidate means in a leak report
Learn what host, server-reflexive, and relay candidates mean in a WebRTC leak report, and how to tell whether your VPN is exposing your IP.
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Tests
How to find loose objects vibrating near a subwoofer
Use a slow bass sweep to locate objects rattling near a subwoofer, then isolate the culprit and stop the vibration without guessing.
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Tests
How to test a mouse at a public computer
Check clicks, scrolling, double-clicks, and polling rate on a shared PC, then find out whether the mouse, surface, or station settings are at fault.
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Tests
Ghost touches near a cracked corner: how to check
Check whether a cracked screen corner is registering touches on its own, tell ghost touches from missed taps, and decide what to test next.