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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 over 2 weeks ago

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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