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“This Test Can Only Be Taken on a Computer”

Candidates may encounter an error stating that the test can only be taken on a computer, even when they are using a laptop or desktop. This is typically caused by browser zoom or screen resolution issues—not the device itself.

Written by Gemma Azur
Updated in the last 15 minutes

Why This Happens

The platform detects screen width to determine if the user is on a computer.

If the browser is zoomed in, the effective screen width drops below the required threshold (1080px), causing the system to incorrectly treat the device as a mobile screen.

How to Fix

Ask the candidate to adjust their browser zoom:

Option 1: Keyboard Shortcut

  • Windows: Press Ctrl + -

  • Mac: Press Command (⌘) + -

Repeat until the page zoom is reduced (ideally 100% or lower).

Option 2: Reset Zoom to Default

  • Press:

    • Windows: Ctrl + 0

    • Mac: Command (⌘) + 0

Option 3: Browser Settings

  • Open browser menu (⋮ or ☰)

  • Find Zoom

  • Set it to 100%

Additional Checks (If Issue Persists)

  • Ensure the browser window is maximized

  • Try a different browser (Chrome recommended)

  • Disable display scaling (if set very high)

  • Use a device with a larger screen resolution

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