Resolved Lock F12 button and display the source code

I would like to know how to find out which module / plugin or something that manages the opening of the video screen.
I use Moview, but I'm using a tool that blocks the use of the right mouse button, F12 and etc.
But I already noticed that, when opening the video, it is still possible to do this without blocking.
So, I would like to know how to find out which manager is responsible for the reproduction, so that I can also include it in my blocking plugin.
In the attached image, I'm playing a video (I clicked on PLAY) on the cards and I would like to know who is the module or plugin responsible for it, so that it also blocks it.
Thus leaving my site protected against piracy and / or unwanted invasions.
And finally, I was wondering if it is possible to estimate how many simultaneous accesses my template can support. I use an 8GB ram and 4 vCPUS SSD server in linux.
Thank you!