One suspicious dot
Identify a bright, dark, or colored point.
Answer a few questions, mark the exact area, and get a cautious next step.
Start the guided dot checkOne suspicious dot
That tiny dot should not steal your week.
In about two minutes, find out whether it looks stuck, dead, dusty, or caused by software—then choose the safest next move.
No upload
No account
Clear next steps
Just bought a screen?About 5 min
New-screen inspection
Check it before the return window closes.
Run a private acceptance test for the problems that are easiest to miss during setup.
- 01Physical condition and ports
- 02Pixels, gray, and gradients
- 03Text, motion, and normal use
No concernsReviewIncomplete
Inspect my new screen
Choose the check that fits
Start with the screen problem you actually have.
You can switch paths at any time. Every test is a separate, fast-loading page with normal links.
New screen · About 5 minutes
Inspect it before the return window closes.
Check physical condition, pixels, gray uniformity, gradients, text, motion, and normal content—then save a no-concern, review, or incomplete result.
Start new-screen inspectionI need to see examples
Compare the mark with common screen problems.
See simple examples of pixels, dust, glow, bleed, retention, lines, and physical damage.
Open the visual issue guideAlready know what you need? Open the manual full-screen colors.
Why test first
Find out what the problem is before trying to fix it.
A new monitor that can still be returned needs a different next step from an older screen with one bright pixel. An animated stuck-pixel tool should not be the first step for every screen problem.
A simple four-step check
From “what is that?” to “here’s what I’ll do.”
Check
Manual black, white, red, green, and blue screens. Nothing flashes during the check.
Understand
Record what the dot does. See the likely cause, how certain the result is, and what the test cannot confirm.
Choose
Return it, document the problem, check the app or cable, contact support, or try an optional exercise.
Document
Save the dot location, device details, photo checklist, support message, and return reminder in one evidence pack.
Useful after the test
Clear next steps based on what you found.
- Check returns firstIf the device can still be returned, check that option before experimenting.
- Check the screen itselfThe display’s built-in test helps show whether the problem is in the screen, cable, computer, browser, or another app.
- Screen test reportSave the device details, test results, dot count, location, and photo checklist without uploading anything.
The honest part
A browser cannot see your physical pixels.
You tell us what you see; the tool compares your answers with common screen problems. It cannot guarantee a diagnosis, repair a dead pixel, or decide a warranty claim.
Read how it works and what it cannot doReady when you are