Screen stats

Where these numbers come from

Homepages and screen-test pages add measured results automatically, unless a visitor has switched screen stats off on the privacy page. The homepage readout and resolution checker supply display parameters, the refresh rate test supplies settled Hz, and the touch screen test supplies results only for the parts actually run. A pixel finding is added only after someone answers what they found and what screen they tested. Each kind of measurement can contribute once per browser and UTC day; the browser keeps only the date to enforce that. These are counts of tests, not unique people or devices. No identifiers or IP addresses are stored. The privacy page lists every field and has the off switch.

Counts are refreshed every hour, so a new sample shows up within about an hour. A group (phones, say) is shown only once it holds at least 30 samples; below that the page says it is still collecting. Values reported by fewer than 5 samples in a group, such as an unusual refresh rate, are listed together as "Other".

How to read them

These are screens tested here, not a random sample of all screens. That matters most for dead pixels: someone who runs the test often has a reason to look. Refresh rates are what the browser delivered at that moment, which can sit below what the panel supports. Device type is detected by the page (a touch screen smaller than a tablet counts as a phone), except on the dead pixel test, where people pick what they tested.