Contact
The fastest way to reach us is plain email — no form, no account, nothing stored by a third-party form service.
What to include
For a question about a result, paste the text from the test's Copy Results button — it contains the measured figures (average, lows, detected rate) that make a reply useful, and nothing about you personally. For a correction to a guide or a calculator figure, link the page and name the figure; calculator estimates are reviewed against the published reviews they are modelled from. Please do not send system passwords, serial numbers or anything you would not post publicly — no legitimate question about a display test needs them.
Response times
This is a small project; replies usually arrive within a few days. Test results are computed on your device, so for urgent setup help the guides — especially Monitor Stuck at 60Hz — will usually get you unstuck faster than we can.