Do u have in your mind any tool,
Nothing whatsoever, I have tested some for about 5 minutes and removed them but, admitedly, haven't tried one in years, maybe 10+.
Here's maybe a crazy analogy for you.
How do you know what's going on inside a factory if you're not allowed in to do a full analysis of what's going on there? Sure you may be able to count trucks going in and out however without detailed information what else could you glean without full access to everything happening?
In all of my factories raw material can be seen going in however without either being inside to see the production or access to shipping documents, no one would know the products being shipped out in a container.
Of course IF you have access to specific data then you could start to make some reasonable assumptions however you would have to be very specialised in undrstanding it, like me, or you would simply be trying to make reasonable assumption at best or most likely, guesses.
Would those assumptions of guesses bt reasonable or simply based upon "free data" acquired from other industries?
These are independent metrics not tied to anything one can easily action.
Precisely, successful businesses try not to reveal / leak essential data advantages.