Touchpad / Trackpad Test
Test what a touchpad can actually show a web page — and know what it cannot.
Drag across the whole pad, into every corner. Then click, two-finger scroll, and pinch.
Three- and four-finger gestures are handled by the operating system and never reach a web page. They are not in the list above because no browser-based test can see them — not because your touchpad cannot do them.
How this test works
Drag across the pad and the path is drawn, which is what makes a dead patch visible — a gap in the trail where the surface stopped reporting. Buttons, two-finger scroll and pinch are tracked alongside it. The list of what is checked is deliberately short, and that is the finding rather than a limitation to apologise for: the most-used touchpad gestures never reach a web page at all, because the operating system claims them for switching desktops and applications. A test that drew them as untested would make a perfectly good touchpad look broken, which is the same mistake a keyboard tester makes with the function keys.
What the results mean
- The trail
- Where the pointer reported being. A gap in an otherwise continuous drag is a dead patch on the surface.
- Simultaneous contacts
- How many pointers the browser saw at once. One is normal for a touchpad — the operating system interprets multi-finger contact itself.
- Pinch
- Delivered as a scroll event with a modifier flag. Seeing it means the gesture is reaching the browser correctly.
- Gestures the page cannot see
- Three- and four-finger swipes. Taken by the operating system first, so no browser test can check them.
Common problems and fixes
- The pointer jumps or stalls in one area
- Clean the surface and your fingertips first — grease and moisture cause more intermittent tracking than hardware failure. If it repeats in the same place afterwards, the pad has a dead patch.
- Clicking feels uneven across the pad
- On many laptops the battery sits directly beneath the trackpad, and a swelling cell lifts it. Check the machine from the side before assuming the pad is at fault.
- My three-finger gestures do not register
- Expected, and not a fault. The operating system handles them and never passes them to the page — check them against a desktop switch rather than against a browser.
- Scrolling works but pinch does not
- Some drivers and some browsers do not deliver pinch to pages at all. Check zoom works in the browser itself before concluding anything about the hardware.
Frequently asked questions
Why do my touchpad gestures not work in a browser test?
Because the operating system takes them first. Three- and four-finger swipes are bound to desktop and application switching at a level below the browser, so no web page is ever told about them. That is why this test checks the shorter list of things a page can genuinely observe rather than showing the rest as failures.
How do I know if my trackpad is failing?
Look for gaps in the trail while dragging continuously — a dead patch is the clearest hardware sign. Uneven clicking is different and usually is not the pad at all: on many laptops it means the battery underneath has started to swell, which is worth checking before ordering a part.
Why does the test only see one finger?
A touchpad reports interpreted results rather than raw contacts to applications. The operating system does the interpreting, so a page normally sees a single pointer regardless of how many fingers are on the surface. A low count here is expected and says nothing about the hardware.