Blog
Short, practical guides for checking your hardware and fixing what the tests find.
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Tests
How to check device pixel ratio in your browser
Check your browser's device pixel ratio, understand what the number means, and see how zoom, display scaling, and multiple screens affect it.
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Tests
Cupboard door vibrates with music: find the cause
Use a slow bass sweep to find whether the cupboard door, its contents, or a nearby speaker is rattling, then stop the vibration safely.
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Tests
How to record connection drops during a class
Track connection drops during an online class, then compare their timing with response time, jitter and lost requests to find where to troubleshoot.
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Tests
Browser restrictions on microphone recording
Learn how browser permissions, secure connections, and system privacy settings affect microphone recording, then test which part is blocking it.
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Tests
Why bass disappears with certain speaker placement
Find out whether bass loss comes from room acoustics, speaker position, or a channel problem, then test small placement changes with a browser speaker test.
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Tests
How to compare traffic noise at different windows
Compare traffic noise at each window with a repeatable setup. Learn what the decibel readings mean and how to avoid misleading results.
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Tests
How to test a USB-C to USB-A charging cable
Compare a USB-C to USB-A cable with another cable, spot slow charging, and learn what a browser test can and cannot tell you.
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Tests
How to test noise reduction from a door draft stopper
Compare sound levels before and after fitting a door draft stopper, using the same noise source, microphone position, and room conditions.
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Tools
How to compare serif and sans-serif fonts for reading
Compare serif and sans-serif fonts with the same passage, size, and screen conditions, then choose the one that stays comfortable to read.
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Tools
What to check when a supplier's local holiday starts
Check the supplier's local date, holiday hours, order cutoffs, and reopening time so you can plan handoffs without missing a deadline.
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Apps
How to crop a photo for a profile picture
Crop a photo for a profile picture with a square frame, a clear composition, and room for circular displays, then save a version that fits your account.
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Tests
How to find out if hardware acceleration is available
Check whether your browser can use hardware acceleration, whether it is enabled, and what to try if graphics features are running in software.