Blog
Short, practical guides for checking your hardware and fixing what the tests find.
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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.
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Tests
Internet slower than your plan? How to test it
Measure download, upload, ping, and jitter, then compare wired and Wi-Fi results to see whether your router, device, or ISP is slowing you down.
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Games
How to test N-key rollover on a gaming keyboard
Check how many keys your gaming keyboard can register at once, spot missed or extra presses, and tell rollover limits from a game issue.
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Tests
MIDI keyboard sends duplicate notes: causes and fixes
Find out whether your MIDI keyboard sends each note twice or your music app is duplicating it, then check the most common causes.