[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"content-seo:touchTest":3},{"description":4,"seo":5,"faq":8},"Rub your finger over a 48-cell grid: each cell lights up when it registers a touch, so dark cells or a line that keeps breaking point to a dead zone. Put several fingers down to see the most touches your screen tracks at once. Runs free in the browser on phones, tablets and touch laptops.",{"ogTitle":6,"ogDescription":7},"Touch Screen Test | Dead zones & multi-touch check - Giggleus","📱 Phone screen not responding in one spot? Swipe across a 48-cell grid to find dead zones and see how many fingers it tracks at once. Free, no app needed.",[9,12,15,18],{"question":10,"answer":11},"How do I check my touchscreen for dead zones?","Slowly rub your finger over the whole screen. The test area is split into 48 cells (6×8) that light up when touched; a cell that stays dark, or a spot where your drawn line keeps breaking, suggests a dead zone.",{"question":13,"answer":14},"How many touch points does my screen support?","Put several fingers down at once and read the “Max at once” number. It shows the most touches the browser received together, which can be lower than the spec sheet because the OS and browser also set limits.",{"question":16,"answer":17},"Does it measure touch pressure or sampling rate?","No. Browsers don't expose a reliable touch sampling rate, and most phones don't report real pressure, so this test only checks where touches register, how many at once and the path you draw.",{"question":19,"answer":20},"Can I use it on a PC without a touchscreen?","You can click and drag with a mouse or trackpad to try the grid and lines, but simultaneous touches stop at 1. Checking multi-touch needs a touchscreen."]