I just had a little idea this morning and I wanted to share it with you.
The basic idea is, that I hate captches and probably most of you do as well. And so I came up with this idea. I thought about the fact, that the main difference between bots and humans is their interactivity on a website.
That's why I wanted to put eventListeners on the website and even some of the form elements and check the score.
This is kind of a double check to see how many captures there were in the form (e.g for your PHP Script).
This is the test site i've set up this morning:
Captures are at the moment: scrolling, mouse movement, focus, tabbing, key down and clicking to input fields.
Also I would like to hear your feedback on that idea.