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
What to check before selling your old laptop
Run a browser check of the keyboard, screen, ports, camera and more, then back up, erase your data and list the laptop honestly before handing it to its next owner.
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Tests
Laptop upgrade checklist: what to check first
Check your laptop's upgrade limits, battery, memory, storage and temperatures before buying parts, so you know whether an upgrade will solve the problem.
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Tests
Why laptop function keys do not register online
Learn why laptop Fn and F keys may not appear in a browser test, which keys browsers intercept, and how to check the keyboard another way.
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Tests
How to identify your graphics processor in a browser
Use the browser-based System Info tool to find the graphics processor your browser reports, then verify the exact model in Windows or macOS.
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Tests
Why your CPU score changes between tests
Learn why your CPU score changes between runs, how heat and background apps affect it, and how to retest for a more reliable comparison.
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Tests
How to test a used laptop's processor performance
Check a used laptop's single-core and all-core processor performance in your browser, understand the score, and spot power or heat problems before you buy.
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Tests
Why browser graphics run slowly on a new laptop
A new laptop can still render browser graphics slowly because of power limits, settings, or a driver issue. Test the GPU and find the cause.
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Tests
How to check if your browser uses GPU acceleration
Check whether Chrome, Edge, or Firefox is using your GPU, compare it with a browser graphics test, and fix software rendering if needed.
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Tests
How to see what browser information sites can access
See what a website can learn from your browser, check permissions and exposed details, and limit access to your camera, microphone, and location.
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Tests
Wi-Fi shows full bars but the internet keeps pausing
Full Wi-Fi bars do not guarantee a steady connection. Measure response time, jitter, and drops, then narrow down whether Wi-Fi or internet is at fault.
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Tests
How to build a room-by-room Wi-Fi quality map
Map Wi-Fi quality in every room by measuring response time, jitter, and drops consistently, then use the results to find and fix weak spots.
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Tests
How to verify Wi-Fi improvements after moving a router
Compare Wi-Fi room by room before and after moving your router, using repeatable measurements to see whether coverage and connection quality really improved.