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
Why HTTPS matters for local browser tools
Learn how HTTPS protects the page and enables browser permissions, what it does not guarantee, and how to check your browser's secure features.
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Tests
Laptop battery drains while plugged in: what to check
Use Battery Meter to see whether your laptop is charging, then compare charge rates and check the adapter, cable, workload, and power settings.
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Tests
Router bandwidth limit? What to inspect
Check whether a router limit, device setting, Wi-Fi issue, or internet plan is slowing you down, then test changes without guessing.
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Tests
How to document a PC's condition before shipping
Create a clear record of a PC's working condition before shipping it, with test results, photos, identifying details, and packing evidence.
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Tests
How to check an HDMI adapter for output limits
Check whether an HDMI adapter limits resolution or refresh rate, and separate adapter problems from issues with the cable, port, monitor, or settings.
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Tests
Why battery percentage drops faster in cold weather
Learn why cold makes a battery percentage fall quickly, how to compare the drain safely, and when the change may point to a worn battery.
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Tests
What steady jitter tells you about a Wi-Fi connection
Learn what consistently high Wi-Fi jitter means, how to test it in your browser, and what to change if calls or games keep stuttering.
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Tests
Why browser storage tests use temporary data
Learn why a browser storage test writes temporary data, what stays on your device, and how to interpret the speed results safely.
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Tests
Why a fast NVMe drive feels slow in an old laptop
A fast NVMe SSD can still feel sluggish in an old laptop. Test storage speed, then check the slot, heat, free space, and everyday bottlenecks.
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Tests
How to map Wi-Fi coverage before moving furniture
Map Wi-Fi quality in each room before moving furniture, compare weak spots, and choose a better layout using repeatable readings instead of signal bars.
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Tests
Printer missing one color: what to check
Print a color test page to tell whether a missing color comes from a clogged nozzle, empty cartridge, grayscale setting, or the document itself.
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Tests
How to check a computer that was stored for years
Inspect a computer safely after years in storage, start it without risking damage, then test its battery, screen, keyboard, storage, and more.