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Editorial Team
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Asked: 2026-05-25T10:03:05+00:00

I’ve created a custom validation script for my website because people need to validate

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I’ve created a custom validation script for my website because people need to validate every hour to make sure they aren’t using scripts/auto-refreshers to gain an advantage. To make the experience as easy as possible, an image is displayed with a number between 1 and 9. I created all these images manually with photoshop to make them slightly difficult to see. The user must then click a randomised “numpad” between 1 and 9 with the right number which is displayed below this first image.

My question is as follows:

How easy is it for someone to write a script/program of some-kind that can read the source-code, check the name of the div that displays the image with the number and then read the file-name to see what the image name is and then use an OCR to click the right number on the chart?

I have absolutely no idea how I would even start doing this, but I want to know if it’s necessary to change the image filename to something random every time, rather than something like number1.png, number2.png etc

Many thanks in advance for your help and advice

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1 Answer

  1. Editorial Team

    I think it would be really TOO easy!

    1. it’s really too easy to read the divs names!
    2. yes, you should change images name each time
    3. if the images are only 9, the attacker can play some hours, save all the different images, and then he won’t even need OCR because he will only compare the images pixel by pixel!
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