If you have ever searched something on a website, have tried to download something or have filled a form, then you must have seen a small checkbox ‘I’m not a robot’. The simple as this line looks, the more smart and complex the system behind it is.

But have you ever thought that just by clicking, how does the website know whether the user sitting in front is a human or an automated bot?

Not just clicks, your full behavior is seen

When you click on that checkbox, the system is actually making your actions i.e. the movement of your mouse, the way to scroll on the screen and the time taken to click.

A human mouse movement is never straight, it is a little curved and random. At the same time, computer programs ie bots behave absolutely accurate and equally. By catching this difference, the system decides whether you are a real human being or not.

Your device is also examined

Apart from this, your browser and device are also scanned. This is called browser fingerprinting in technical language. It is seen that it is seen what your IP address is, how much is your screen size, which plugins you have installed, which time you are in which time zone and much more.

If anything in these information is suspected, such as the use of VPN, or the headless browser used by bots, then the system is alerted.

Sometimes the challenge with image is found

If your activity looks normal, then you move forward in one click. But if the system is also a little suspicious, then you are given a visual test like ‘Choose bus pictures’, ‘Show traffic lights’ etc.

These challenges are easy for humans, but bots have problems in this. Because most of the bots so far are not very good in identifying the image.

Google account also helps

If you are logged in from Google account in your browser, then Recaptcha (Google’s security tool) also takes into account your previous browsing history. This makes it easier to decide whether you are already a reliable user.

So finally, what does this checkbox do real work?

The direct answer is that it examines your identity. But not just with clicks, but seeing your entire digital body language. This is a kind of concierge that decides that only the right people come in on the website, not spam -spread bots.

So the next time you click on ‘I’M Not A Robot’, then understand that you are crossing a high -tech security system, not just a checkbox!